Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
I put the Motran to bed, it's gonna rest in piece. As for the Regency, it might not look impressive inside, but to an IFR, well it made the grade at .02 sensitivity, so until something comes along on the cheap line, as I have spent more money than I should have, I'm gonna use what I have available. But I do appreciate all the input. A fellow ham, gotta bless his heart, was trying to be helpful in making a contribution. I never ment to start a thread that would lead to in/outs of old klunkers. I gave up electronics 12 yrs ago, and trying to remember what I forgot is easier said than done. Either way, the repeater is repeating, and that was my goal. Someday someone will reinvent the wheel, Just won't be me. But hey, I'm having fun with it. - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 3:33 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] You bet ... if it happens you need the diagrams of the Motran, I probably have them here. Best of luck on your connty assigned project. Neil - WA6KLA Mathew Quaife wrote: Hi Niel, yes I think it is the Motran, as there are no tubes in this critter at all. But seems more work than it's worth. It was donated for use on the repeater that I am building for the county, will be thier first 2 meter repeater, and it's all out of my pocket. I bought a couple of Regency repeaters, disabled the controller inside and used the transmitter and reciever and connected them to an RLC4 controller, seems to work ok. Thought on the Motorola was to eliminate the need for the external amplifier, but it all matches, so will see if all comes together when I put it on the air here in a few weeks. Thanks for the input. Mathew - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 12:04 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. By your description, that sounds like a T43MSN Motran. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew Neil - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 4:23 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] A high band motrac would be something like U43LHT or U43MHT, where the High band Motran would be something like U43LLT or U43MSN. mch [EMAIL PROTECTED] wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Oh, trust me I got it! Thanks. It's a freebee Nothing lost. - Original Message - From: Ted Bleiman K9MDM - MDM Radio [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, March 24, 2004 6:50 AM Subject: Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]] --- Neil McKie [EMAIL PROTECTED] wrote: I thought we had given you some very positive comments for your project. :( neil i wonder if he ever 'GOT IT'??? mdm ted I haven't laffed this much in a long time pnp warmup times, what ahoot. mdm ted = Ted Bleiman K9MDM -just tired MDM Radio Ltd 1629-B N. 31 st Ave Melrose Park, IL 60160 708.681.0300 fax 708.681.9800 email [EMAIL PROTECTED] web http://www.mdmradio.com __ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Be carefull Many radios, AND THE REGENCY IS **NOT** AN EXCEPTION, when the receiver is highly sensitive then they are very prone to intermod. If I were you, I would consider using the Motran receiver, and the regency transmitter. Mathew Quaife [EMAIL PROTECTED] wrote: I put the Motran to bed, it's gonna rest in piece. As for the Regency, it might not look impressive inside, but to an IFR, well it made the grade at .02 sensitivity, so until something comes along on the cheap line, as I have spent more money than I should have, I'm gonna use what I have available. But I do appreciate all the input. A fellow ham, gotta bless his heart, was trying to be helpful in making a contribution. I never ment to start a thread that would lead to in/outs of old klunkers. I gave up electronics 12 yrs ago, and trying to remember what I forgot is easier said than done. Either way, the repeater is repeating, and that was my goal. Someday someone will reinvent the wheel, Just won't be me. But hey, I'm having fun with it. - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 3:33 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] You bet ... if it happens you need the diagrams of the Motran, I probably have them here. Best of luck on your connty assigned project. Neil - WA6KLA Mathew Quaife wrote: Hi Niel, yes I think it is the Motran, as there are no tubes in this critter at all. But seems more work than it's worth. It was donated for use on the repeater that I am building for the county, will be thier first 2 meter repeater, and it's all out of my pocket. I bought a couple of Regency repeaters, disabled the controller inside and used the transmitter and reciever and connected them to an RLC4 controller, seems to work ok. Thought on the Motorola was to eliminate the need for the external amplifier, but it all matches, so will see if all comes together when I put it on the air here in a few weeks. Thanks for the input. Mathew - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 12:04 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. By your description, that sounds like a T43MSN Motran. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew Neil - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 4:23 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] A high band motrac would be something like U43LHT or U43MHT, where the High band Motran would be something like U43LLT or U43MSN. mch [EMAIL PROTECTED] wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
I think that it could be made to work, but you would have to split the radio apart and separate the transmitter and receiver and probably put them in separate RF tight boxes boxes and use feed-through capacitors and filtering networks. The boxes would need to be completely shielded and you probably would need a couple of stages of feed-through capacitors and choke stages to bring the signals out. If you put the volume control and squelch control inside the box, that saves three or four wires. Motorola uses three feed-through to ground with two series chokes and completely separated barriers compartments in their older motrac base stations to keep their VHF stations free of desense. I have done a little of this, switching around receivers from mobiles into motrac base stations to convert them to repeaterreceivers. I bought the feed-throughs and the chokes and built the stages. This is possible, but it really may be more trouble than it is worth. It probably would be a better idea to find something else, but start this project as a long term learning exercise. Micheal Salem N5MS Neil McKie wrote: You bet ... if it happens you need the diagrams of the Motran, I probably have them here. Best of luck on your connty assigned project. Neil - WA6KLA Mathew Quaife wrote: Hi Niel, yes I think it is the Motran, as there are no tubes in this critter at all. But seems more work than it's worth. It was donated for use on the repeater that I am building for the county, will be thier first 2 meter repeater, and it's all out of my pocket. I bought a couple of Regency repeaters, disabled the controller inside and used the transmitter and reciever and connected them to an RLC4 controller, seems to work ok. Thought on the Motorola was to eliminate the need for the external amplifier, but it all matches, so will see if all comes together when I put it on the air here in a few weeks. Thanks for the input. Mathew - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 12:04 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. By your description, that sounds like a T43MSN Motran. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew Neil - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 4:23 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] A high band motrac would be something like U43LHT or U43MHT, where the High band Motran would be something like U43LLT or U43MSN. mch [EMAIL PROTECTED] wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
I have some toob stuff here - just for you Ken, Neil Ken Arck wrote: At 09:17 AM 3/23/2004 -0800, you wrote: Just before the transistor, solid state tubes. They are small and round. ---As I posted earlier, the only solid state tubes I can think of were actually solid state diodes that were made as replacements for the older vacuum tube rectifiers, such as the 5U4 series. I don't remember ever seeing these type of replacements for tubes such as triodes, pentodes and so on. Anyway, those M9394's are transistors (germanium as I recollect) that are part of the high voltage power supply and aren't RF devices. But I suppose this is all moot - it would make a terrible repeater in any case :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Oh ... Ken Arck wrote: It depends on whether they're NPN or PNP tubes.. At 02:06 PM 3/23/2004 -0800, you wrote: How much warm up time do they need? Ken Arck wrote: At 08:18 AM 3/23/2004 -0800, you wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. ---What the heck is a transistorized tube?? Are they round and silver? Ken Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Likewise, I have only worked on a few Regency's was not impressed at any of them. ONE exception, the old 10 channel Regency crystal scanners seem to work OK as weather broadcast monitors. I am setting one of those up at my FM radio station for a dedicated receiver for the NWS. The current radio shack monitor looses it's frequency every time power goes out, and that is extremely inconvienent. Neil McKie [EMAIL PROTECTED] wrote: The only regency FM radio I ever had the (???) to service, I was not impressed with the internal quqlity - at all !!! Neil Mathew Quaife wrote: Yes, but so did Motorola and GE. Regency made several products. Why you ask? - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 2:11 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Doesn't / didn't regency make scanners and CB's? Mathew Quaife wrote: Thanks for the input. Gonna stick with the Regency until something better comes along. It is working, so is all i can expect. Mathew - Original Message - From: Ken Arck [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 9:34 AM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] At 09:17 AM 3/23/2004 -0800, you wrote: Just before the transistor, solid state tubes. They are small and round. ---As I posted earlier, the only solid state tubes I can think of were actually solid state diodes that were made as replacements for the older vacuum tube rectifiers, such as the 5U4 series. I don't remember ever seeing these type of replacements for tubes such as triodes, pentodes and so on. Anyway, those M9394's are transistors (germanium as I recollect) that are part of the high voltage power supply and aren't RF devices. But I suppose this is all moot - it would make a terrible repeater in any case :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Ken I think you have been around as long as I (40+ years in electronics). There was a line of transistorized modules that took the place of tubes. I cannot remember the type numbers or manufacturor of them. I have used several meters that had been changed to transtubes such as the H.P. 400D voltmeter. I remember there was available a set of replacements for all the miniature tubes in the Collins KWM-2. The advantage of the transistorized replacements was lack of constant changes due to cathode emission and thus lengthened the time between calibration checks. 73's de Tom Manning, AF4UG [EMAIL PROTECTED] Ken Arck wrote: At 09:17 AM 3/23/2004 -0800, you wrote: Just before the transistor, solid state tubes. They are small and round. ---As I posted earlier, the only solid state tubes I can think of were actually solid state diodes that were made as replacements for the older vacuum tube rectifiers, such as the 5U4 series. I don't remember ever seeing these type of replacements for tubes such as triodes, pentodes and so on. Anyway, those M9394's are transistors (germanium as I recollect) that are part of the high voltage power supply and aren't RF devices. But I suppose this is all moot - it would make a terrible repeater in any case :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
At 04:53 PM 3/23/2004 -0800, you wrote: Ken I think you have been around as long as I (40+ years in electronics). ---Yes Tom. I have been around long enough to remember when Sue was a noun and the Left was a direction you headed :-) Thanks for update on Transtubes! Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
It seems there was a time when a man could have backed out gracefully. Once upon a time. - Original Message - From: Mathew Quaife [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 4:21 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Yes, but so did Motorola and GE. Regency made several products. Why you ask? - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 2:11 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Doesn't / didn't regency make scanners and CB's? Mathew Quaife wrote: Thanks for the input. Gonna stick with the Regency until something better comes along. It is working, so is all i can expect. Mathew - Original Message - From: Ken Arck [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 9:34 AM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] At 09:17 AM 3/23/2004 -0800, you wrote: Just before the transistor, solid state tubes. They are small and round. ---As I posted earlier, the only solid state tubes I can think of were actually solid state diodes that were made as replacements for the older vacuum tube rectifiers, such as the 5U4 series. I don't remember ever seeing these type of replacements for tubes such as triodes, pentodes and so on. Anyway, those M9394's are transistors (germanium as I recollect) that are part of the high voltage power supply and aren't RF devices. But I suppose this is all moot - it would make a terrible repeater in any case :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
They or somethin very close made the uniden regency bearcat scanner stuff, maybe cb - you are talking those 11 meter am boxes right? Neil McKie wrote: Doesn't / didn't regency make scanners and CB's? -- 73...Clark Beckman N8PZD Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Here you go Ken... http://www.neoseeker.com/Articles/Hardware/Reviews/aopenax4btube http://www.digit-life.com/articles2/aopentube Look at the top left of the picture in the top link for the 9-pin socket. http://club.aopen.com.tw/pss/largeview.asp?modelname=AX4B-533%20Tubeimg=/Products/images/MB/products/ax4b-533tube-b.jpg Mike WA6ILQ At 05:21 PM 3/23/04 -0600, you wrote: PNP tube!!! I've been waiting for them to make PNP tubes that are compliant to the Plug-n-play standard for Windows!!! Where do they attach to my computer? Will windows recognize them or do I have to download additional drivers? Ken Arck [EMAIL PROTECTED] wrote: It depends on whether they're NPN or PNP tubes.. At 02:06 PM 3/23/2004 -0800, you wrote: How much warm up time do they need? Ken Arck wrote: At 08:18 AM 3/23/2004 -0800, you wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. ---What the heck is a transistorized tube?? Are they round and silver? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Re: [Repeater-Builder] Motorola Motrac Radio]
A big advantage of these for some people is the -sweet tube sound- which makes for great repeated audio, at least for my repeater. And instant warm-up!! Laryn K8TVZ --- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote: It depends on whether they're NPN or PNP tubes.. At 02:06 PM 3/23/2004 -0800, you wrote: How much warm up time do they need? Ken Arck wrote: At 08:18 AM 3/23/2004 -0800, you wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. ---What the heck is a transistorized tube?? Are they round and silver? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
That is what the regency FM set reminded me of when I looked inside the case. Virden Clark Beckman wrote: They or somethin very close made the uniden regency bearcat scanner stuff, maybe cb - you are talking those 11 meter am boxes right? Neil McKie wrote: Doesn't / didn't regency make scanners and CB's? -- 73...Clark Beckman N8PZD Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
--- Neil McKie [EMAIL PROTECTED] wrote: I thought we had given you some very positive comments for your project. :( neil i wonder if he ever 'GOT IT'??? mdm ted I haven't laffed this much in a long time pnp warmup times, what ahoot. mdm ted = Ted Bleiman K9MDM -just tired MDM Radio Ltd 1629-B N. 31 st Ave Melrose Park, IL 60160 708.681.0300 fax 708.681.9800 email [EMAIL PROTECTED] web http://www.mdmradio.com __ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
The Motrac Motran have the same receivers, there are no differences. Of course, there are differences in versions. The Motrac had the H, L, M model of receivers. The Motran had only the L M receivers (there were no Motrans in the H era of Motracs). Micheal Salem [EMAIL PROTECTED] wrote: SNIP a later version of motrac. By my understanding and experience, there was little difference between a Motrac receiver and a Motran receiver (FET in the rf preamp instead a bipolar, etc.) There were, of course, differences in the transmitters. If I understood Matthew's e-mail, he said that it had no tubes but used Motrac cables. While I have experience with Motrac mobiles and base stations, I only have experience with Motran type base stations, (i.e., MSY type stations which had solid state 10 - 12 watt exciters). I thought that the Motrans used Motrac cables. Since he said it had no tubes, it sounds like he has a Motran. Micheal Salem N5MS mch wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
You are pretty close, Ken!! In low band high band, the HHT had 2 or 3 tubes on the exciter while the LHT MHT were solid state in the exciter. All models had 2 tubes in the PA deck, which were basically not visible. Ken Arck [EMAIL PROTECTED] wrote: At 02:54 PM 3/22/2004 -0600, you wrote: The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. ---Wow, it's been a number of years since I've dealt with this but as I remember, the HHT was the earliest version of a Motrac but not the only one in the series that had tubes in the xmtr. I believe ALL Motracs had at least one tube in the xmtr, but used less of them in each later version. It wasn't until the Motran that the xmtrs went all solid state (crummy PNP devices too!). Of course, I've been wrong before! Ken (has a photographic memory but lately I've been running low on film) Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
At 08:24 PM 3/22/2004 -0600, you wrote: All models had 2 tubes in the PA deck, which were basically not visible. ---I remember the smelly heatsinks with the fingerstock and braid, yep! But didn't the MHT have a squarish heat sink instead of the curvy, contoured ones the earlier models had? Or am I thinking MST? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
A high band motrac would be something like U43LHT or U43MHT, where the High band Motran would be something like U43LLT or U43MSN. mch [EMAIL PROTECTED] wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
The squarish one was the MST. Ken Arck [EMAIL PROTECTED] wrote: At 08:24 PM 3/22/2004 -0600, you wrote: All models had 2 tubes in the PA deck, which were basically not visible. ---I remember the smelly heatsinks with the fingerstock and braid, yep! But didn't the MHT have a squarish heat sink instead of the curvy, contoured ones the earlier models had? Or am I thinking MST? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
At 08:29 PM 3/22/2004 -0600, you wrote: The squarish one was the MST. Danke Ken (Memorieslike the echo of my mind... la la la la) -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Motrac Radio
Not really a good plan. Most likely the radio won't duplex without severe desense. Neil - WA6KLA w9mwq wrote: I have a motorola Motrac Radio, can anyone tell me if this unit can be converted to use as a repeater, and what is needed for the crystals. Any help on this would be appreciated. What could be used for a simple controller with little to no hangtime? Thanks. Mathew Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Motrac Radio
Ahem ... Mike Morris wrote: At 09:04 PM 3/21/04 +, you wrote: I have a motorola Motrac Radio, can anyone tell me if this unit can be converted to use as a repeater, and what is needed for the crystals. Any help on this would be appreciated. What could be used for a simple controller with little to no hangtime? Thanks. Mathew The mobile Motracs are all over 30 years old and the insulation on the internal wiring (at least on mine is starting) to flake off. That's because you live in the Los Angeles area - ozone and all that ... Given that situation I would not trust a Motrac in a mission-critical environment. Especially used as a repeater. The early Motracs - the HHTs used crystals in ovens. I do not know of anybody that is still making oven crystals. International Crystal ... for one. The LHT series and MHT series used channel elements - packaged transistorized crystal oscillators. The UHF LHTs and MHTs used a funny two-piece element that is hard to find, Only if you live in the Los Angeles area ... ;) but a one-piece blue element can be made to work just fine by changing one resistor inside. Depends on what radio vs the Channel Element. Re the LHT and MHT UHF radios: The LHT and MHT radios can use 1 piece Channel Elements in the transmitter ... the LHT receiver also uses a one piece Channel Element ... The UHF MHT receiver takes either the TLN8967A or TLN8968A two piece Channel Element (please excuse me if I missed some thing here, it's 1 am+ here.) Also the heat sinks on the tubes are made for a 10%-30% duty cycle - and the heat transfer characteristics is such that they can't suck the heat off fast enough for repeat duty. Mitreks make better low power low-duty-cycle repeaters if a crystal based radio is OK You can get them for $20-50 each. If you need a high duty cycle repeater go with a GE master-II. Correct ... well, mostly ... GE Mastr II ... (spelled correctly) And if you need synthesized, two Maxtracs can be cross- connected into a dandy little low duty cycle repeater... As to a controller, any of the current crop can be set for a low hang time. The cheapest is the NHRC kit. Mike Neil - WA6KLA Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
This one has the three small transistorized finals on the right back side. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 4:23 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] A high band motrac would be something like U43LHT or U43MHT, where the High band Motran would be something like U43LLT or U43MSN. mch [EMAIL PROTECTED] wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
At 05:25 AM 3/23/2004 -0800, you wrote: This one has the three small transistorized finals on the right back side. ---Those transistors are part of the T supply (the high voltage switching supply that supplies B+ to the tubes). As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. On top of the front panel, there should be a plate with the model and serial numbers. It should be right above the big, black connector on the edge. But let meask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. ---Solid state tubes? I think you're talking about the solid state diode replacements (that physically looked like tubes) for tubes like the 5U4, etc. The driver and final tubes in a Motrac were glass. You can see them by loosening the four captive screws in the corner of the heatsink and carefully sliding it off. It will all become obvious at that point :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Motrac Radio
At 12:55 AM 3/23/2004 -0800, you wrote: Not really a good plan. Most likely the radio won't duplex without severe desense. ---I had a full duplex LHT in my car, back in the 70's, complete with a Princess phone conversion control head (remember those?). It worked ok but of course running a mobile full duplex is a whole different game than one in repeater use! Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. There is a place for a 4th one, but that slot is empty. - Original Message - From: Virden Clark Beckman [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 8:02 AM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Can you send some specs for those solid state tubes? Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew -- 73...Clark Beckman N8PZD Pursuant to U.S. Code, title 47, Chapter 5, Subchapter II, ß227, Any and all nonsolicited commercial E-mail sent to this address is subject to a download and archival fee of $500.00 U.S.. E-mailing denotes acceptance of these terms. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Can you send some specs for those solid state tubes? Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew -- 73...Clark Beckman N8PZD Pursuant to U.S. Code, title 47, Chapter 5, Subchapter II, ß227, Any and all nonsolicited commercial E-mail sent to this address is subject to a download and archival fee of $500.00 U.S.. E-mailing denotes acceptance of these terms. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
At 08:18 AM 3/23/2004 -0800, you wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. ---What the heck is a transistorized tube?? Are they round and silver? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Just before the transistor, solid state tubes. They are small and round. - Original Message - From: Ken Arck [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 8:32 AM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] At 08:18 AM 3/23/2004 -0800, you wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. ---What the heck is a transistorized tube?? Are they round and silver? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
At 09:17 AM 3/23/2004 -0800, you wrote: Just before the transistor, solid state tubes. They are small and round. ---As I posted earlier, the only solid state tubes I can think of were actually solid state diodes that were made as replacements for the older vacuum tube rectifiers, such as the 5U4 series. I don't remember ever seeing these type of replacements for tubes such as triodes, pentodes and so on. Anyway, those M9394's are transistors (germanium as I recollect) that are part of the high voltage power supply and aren't RF devices. But I suppose this is all moot - it would make a terrible repeater in any case :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Mathew Quaife wrote: Ok, I took the cover off, there are no tubes inside this unit at all. As for numbers, if it was there, they are gone. This radio has been sitting around for ever in a garage, so hard to say what happened to the numbers. Numbers that I see inside this unit are TFD6000A, TLD6812A-5, TLN8387A, and then the one Stamped on the Top TGN6002A. Inside the PA aera, there are two transistors that feed to the bottom for the heatsink. Can't see any numbers on them. Several tunning pots, and coils. The control head, I am told said Motran on it. Tis all that I know about it. Thanks. Mathew I'll state this in a way others didn't: If it has heatsinks on the sides, there are two tubes under the big heat sink in the back! And even many of them that don't have the heat sinks on the sides still have tubes. The heat sinks on the sides are power supply transistors, not finals! Take off heat sink on the back and it'll be obvious! And there is no such thing as a 'solid-state tube'! That's an oxymoron. Also there are two main types of VHF receivers. The 'H' series (model numbers would be like U43HHT. The first H is receiver type.) has an oven-type crystal, and the first RF amp is bipolar (or did it even have one...?). The 'L' and 'M' series had a mos-fet RF amp, and used channel elements. Also had a big cast helical resonator assembly, so it had better out-of-band rejection. HHT series radios are junk, and can be sent to the scrap heap. Not worth getting crystals for. The LHT and MHT series had decent receivers, but were a bit difficult to interface COS, plus needed some funny voltages (8 volts I think?) The transmitters might be OK for a while, but you'll go bankrupt getting new tubes for it. A customer where I used to work had a lowband Motrac base that needed tubes. I priced them out at the time (around 1994-5) and found it would cost us nearly $1000 for the two tubes. You might find used ones cheaper, but...they're used. -- Jim Barbour WD8CHL Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Ken, if you and John really don't remember those radios, I have a few of them here, you are welcome to look and see for yourselves. 73, Neil Ken Arck wrote: At 08:29 PM 3/22/2004 -0600, you wrote: The squarish one was the MST. Danke Ken (Memorieslike the echo of my mind... la la la la) - President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Yes, please add me to the list for receiving specs on solid state tubes. Also, please tell us who a vendor/supplier is for solid state tubes. Virden Clark Beckman [EMAIL PROTECTED] wrote: Can you send some specs for those solid state tubes? Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew -- 73...Clark Beckman N8PZD Pursuant to U.S. Code, title 47, Chapter 5, Subchapter II, ß227, Any and all nonsolicited commercial E-mail sent to this address is subject to a download and archival fee of $500.00 U.S.. E-mailing denotes acceptance of these terms. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
--- Mathew Quaife [EMAIL PROTECTED] wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. There is a place for a 4th one, but that slot is empty. That sounds like a Motorola Motran, kind of a solid state version of the Motrac. I believe the number was T43MSN-1100 or something like that. Had a Mot M RX and a solid state TX, made about 25-35 watts 150-174. We had some running as repeaters. The same basic radio was used in the 450-470 MSY base/repeater. The highband radio ran into a varactor tripler to produce 12 watts at UHF. That power ran a single tube amp to produce 60-90 watts, depending on version. A lot of people scrapped the amp and ran the 12 watts alone, or into solid state amplification. Really not a bad radio, once it was up and running, just not a really good choice today. Joe __ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Can someone please explain to me what a transistorized tube is? Mathew Quaife [EMAIL PROTECTED] wrote: The numbers that are on the three transistorized tubes are, if that is Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
At 10:34 AM 3/23/2004 -0800, you wrote: Ken, if you and John really don't remember those radios, I have a few of them here, you are welcome to look and see for yourselves. ---No thanks Neal. I am reminded of my age enough, in other ways :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. By your description, that sounds like a T43MSN Motran. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew Neil - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 4:23 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] A high band motrac would be something like U43LHT or U43MHT, where the High band Motran would be something like U43LLT or U43MSN. mch [EMAIL PROTECTED] wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Motrac Radio
The 'L' Series UHF receiver was rated at -60 dB of IM rejection - the first active device was a bi-polar amplifier. The 'M' Series UHF receiver was rated at -80 dB of IM rejection - the first active device was a FET mixer. Ken Arck wrote: At 12:55 AM 3/23/2004 -0800, you wrote: Not really a good plan. Most likely the radio won't duplex without severe desense. ---I had a full duplex LHT in my car, back in the 70's, complete with a Princess phone conversion control head (remember those?). I may have a Princess phone here for your ID board display at Sea-Pac in June. It worked ok but of course running a mobile full duplex is a whole ifferent game than one in repeater use! Back then, I used a 4 freq duplex Motorola U64MHT and a 4 freq duplex GE Mastr Pro - both in the car for a number of years. I saved the Princess and Cinderella phones for you Ken. Ken 73, Neil - WA6KLA Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Hi Niel, yes I think it is the Motran, as there are no tubes in this critter at all. But seems more work than it's worth. It was donated for use on the repeater that I am building for the county, will be thier first 2 meter repeater, and it's all out of my pocket. I bought a couple of Regency repeaters, disabled the controller inside and used the transmitter and reciever and connected them to an RLC4 controller, seems to work ok. Thought on the Motorola was to eliminate the need for the external amplifier, but it all matches, so will see if all comes together when I put it on the air here in a few weeks. Thanks for the input. Mathew - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 12:04 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. By your description, that sounds like a T43MSN Motran. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew Neil - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 4:23 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] A high band motrac would be something like U43LHT or U43MHT, where the High band Motran would be something like U43LLT or U43MSN. mch [EMAIL PROTECTED] wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Re: [Repeater-Builder] Motorola Motrac Radio]]
Skytec Tubesters were used for such things as retubing Collins Receivers and transmitters (not the high-power PA stages, though) with solid-state Tube replacements. I believe if you look on some of the Collins groups pages, there are even people who will repair the Tubesters. K7LJ Original Message: - From: Steve Bosshard [EMAIL PROTECTED] Date: Tue, 23 Mar 2004 13:16:01 -0600 To: Repeater-Builder@yahoogroups.com Subject: RE: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]] Did a search on google solid state replacement tubes and Surplus Sales of Nebraska shows several rectifiers. Ssb Yahoo! Groups Links mail2web - Check your email from the web at http://mail2web.com/ . Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Be careful, I've seen some people confuse the ceramic tubes (like an 8072) for a solid state tube because it was NOT made from glass!! Ken Arck [EMAIL PROTECTED] wrote: But let meask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. ---Solid state tubes? I think you're talking about the solid state diode replacements (that physically looked like tubes) for tubes like the 5U4, etc. The driver and final tubes in a Motrac were glass. You can see Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Don't forget the engineered heating times too. Neil Virden Clark Beckman wrote: Can you send some specs for those solid state tubes? Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew -- 73...Clark Beckman N8PZD Pursuant to U.S. Code, title 47, Chapter 5, Subchapter II, ß227, Any and all nonsolicited commercial E-mail sent to this address is subject to a download and archival fee of $500.00 U.S.. E-mailing denotes acceptance of these terms. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Looks like I may be scrapping some of the B34MSB B34MSY B54MSB B54MSY B74MSB B74MSY C34MSB C34MSY C54MSB C54MSY C74MSB C74MSY J34MSB J34MSY J54MSB J54MSY J74MSB J74MSY Parts of the above were the receiver/exciter used for the B/J94MSB/MSY Stations Chassis ... are mostly the same except the 54 / 74 / 94 units use the external Power Amplifier decks. Any one interested in parts? Neil Joe Montierth wrote: --- Mathew Quaife [EMAIL PROTECTED] wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. There is a place for a 4th one, but that slot is empty. That sounds like a Motorola Motran, kind of a solid state version of the Motrac. I believe the number was T43MSN-1100 or something like that. Had a Mot M RX and a solid state TX, made about 25-35 watts 150-174. We had some running as repeaters. The same basic radio was used in the 450-470 MSY base/repeater. The highband radio ran into a varactor tripler to produce 12 watts at UHF. That power ran a single tube amp to produce 60-90 watts, depending on version. A lot of people scrapped the amp and ran the 12 watts alone, or into solid state amplification. Really not a bad radio, once it was up and running, just not a really good choice today. Joe __ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Yes, but so did Motorola and GE. Regency made several products. Why you ask? - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 2:11 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Doesn't / didn't regency make scanners and CB's? Mathew Quaife wrote: Thanks for the input. Gonna stick with the Regency until something better comes along. It is working, so is all i can expect. Mathew - Original Message - From: Ken Arck [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 9:34 AM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] At 09:17 AM 3/23/2004 -0800, you wrote: Just before the transistor, solid state tubes. They are small and round. ---As I posted earlier, the only solid state tubes I can think of were actually solid state diodes that were made as replacements for the older vacuum tube rectifiers, such as the 5U4 series. I don't remember ever seeing these type of replacements for tubes such as triodes, pentodes and so on. Anyway, those M9394's are transistors (germanium as I recollect) that are part of the high voltage power supply and aren't RF devices. But I suppose this is all moot - it would make a terrible repeater in any case :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Is it not the version that doesn't heat up very quickly? JOHN MACKEY wrote: Can someone please explain to me what a transistorized tube is? Mathew Quaife [EMAIL PROTECTED] wrote: The numbers that are on the three transistorized tubes are, if that is Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
Other ways ... er ... ah ... otherwise ... Ken Arck wrote: At 10:34 AM 3/23/2004 -0800, you wrote: Ken, if you and John really don't remember those radios, I have a few of them here, you are welcome to look and see for yourselves. ---No thanks Neal. I am reminded of my age enough, in other ways :-) Ken --- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
Did you borrow it? Mathew Quaife wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. There is a place for a 4th one, but that slot is empty. - Original Message - From: Virden Clark Beckman [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 8:02 AM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Can you send some specs for those solid state tubes? Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew -- 73...Clark Beckman N8PZD Pursuant to U.S. Code, title 47, Chapter 5, Subchapter II, ß227, Any and all nonsolicited commercial E-mail sent to this address is subject to a download and archival fee of $500.00 U.S.. E-mailing denotes acceptance of these terms. Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
It depends on whether they're NPN or PNP tubes.. At 02:06 PM 3/23/2004 -0800, you wrote: How much warm up time do they need? Ken Arck wrote: At 08:18 AM 3/23/2004 -0800, you wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. ---What the heck is a transistorized tube?? Are they round and silver? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
I'm not gonna get into this relm of Tubes vs. Solid State, but to add that Zenith used several of them, much of which was used in thier TV's for which I service for over 10 years. Enough said. Thanks for looking, they did and in some cases still do exist. - Original Message - From: Steve Bosshard [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 11:16 AM Subject: RE: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]] Did a search on google solid state replacement tubes and Surplus Sales of Nebraska shows several rectifiers. Ssb Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
PNP tube!!! I've been waiting for them to make PNP tubes that are compliant to the Plug-n-play standard for Windows!!! Where do they attach to my computer? Will windows recognize them or do I have to download additional drivers? Ken Arck [EMAIL PROTECTED] wrote: It depends on whether they're NPN or PNP tubes.. At 02:06 PM 3/23/2004 -0800, you wrote: How much warm up time do they need? Ken Arck wrote: At 08:18 AM 3/23/2004 -0800, you wrote: The numbers that are on the three transistorized tubes are, if that is what they are, is M9394. ---What the heck is a transistorized tube?? Are they round and silver? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
You bet ... if it happens you need the diagrams of the Motran, I probably have them here. Best of luck on your connty assigned project. Neil - WA6KLA Mathew Quaife wrote: Hi Niel, yes I think it is the Motran, as there are no tubes in this critter at all. But seems more work than it's worth. It was donated for use on the repeater that I am building for the county, will be thier first 2 meter repeater, and it's all out of my pocket. I bought a couple of Regency repeaters, disabled the controller inside and used the transmitter and reciever and connected them to an RLC4 controller, seems to work ok. Thought on the Motorola was to eliminate the need for the external amplifier, but it all matches, so will see if all comes together when I put it on the air here in a few weeks. Thanks for the input. Mathew - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 23, 2004 12:04 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] Mathew Quaife wrote: This one has the three small transistorized finals on the right back side. By your description, that sounds like a T43MSN Motran. As far as numbers on the unit, don't find anything that meets the model numbers that's been mentioned. Might be easier to just locate one of the GE Mastr II and work with that. Right now I have the regency up and running, but the thougth was if I could convert a 100 watt radio, could do away with the amplifier. Thanks to the many that answered the call on this radio, but soulds like more headache than it would be worth. I do know that the manufacutre date on it is 1968, if that tells anymore about it. But let me ask, when we talk tubes, are we referring to glass tubes, or the later solid state tubes they came out with. Mathew Neil - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 4:23 PM Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio] A high band motrac would be something like U43LHT or U43MHT, where the High band Motran would be something like U43LLT or U43MSN. mch [EMAIL PROTECTED] wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Motrac Radio
could be a MoTran beige front case, bluish-grey covers? df - Original Message - From: Mathew Quaife To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 12:47 PM Subject: Re: [Repeater-Builder] Motorola Motrac Radio The unit I have here does not have any tubes in it. I got alot of post on the unit, states it had tubes, so maybe what I have here is not a motrac. All that is on the unit is a sticker that says Use motrac cable kit only, then it has the numbers TGH6002A stamped on it. Does this give any additonal information. Mathew - Original Message - From: jeremy To: Repeater-Builder@yahoogroups.com Sent: Sunday, March 21, 2004 9:11 PM Subject: Re: [Repeater-Builder] Motorola Motrac Radio receiver yes transmitter not worth the effort ...the receiver works on 12 volts transmitter probably tube type will have multiple voltages and the power supply in the mobile housing is not a continuous duty supply and will never be...w9mwq [EMAIL PROTECTED] wrote: I have a motorola Motrac Radio, can anyone tell me if this unit can be converted to use as a repeater, and what is needed for the crystals. Any help on this would be appreciated. What could be used for a simple controller with little to no hangtime? Thanks.MathewYahoo! Groups Links* To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to:[EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to:http://docs.yahoo.com/info/terms/ Do you Yahoo!?Yahoo! Finance Tax Center - File online. File on time. Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Motorola Motrac Radio
That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Motrac Radio
Hi Dave, yes the face is beigh and the covers are a dark grey to almost black. Mathew - Original Message - From: Dave Fortenberry To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 1:18 PM Subject: Re: [Repeater-Builder] Motorola Motrac Radio could be a MoTran beige front case, bluish-grey covers? df - Original Message - From: Mathew Quaife To: Repeater-Builder@yahoogroups.com Sent: Monday, March 22, 2004 12:47 PM Subject: Re: [Repeater-Builder] Motorola Motrac Radio The unit I have here does not have any tubes in it. I got alot of post on the unit, states it had tubes, so maybe what I have here is not a motrac. All that is on the unit is a sticker that says Use motrac cable kit only, then it has the numbers TGH6002A stamped on it. Does this give any additonal information. Mathew - Original Message - From: jeremy To: Repeater-Builder@yahoogroups.com Sent: Sunday, March 21, 2004 9:11 PM Subject: Re: [Repeater-Builder] Motorola Motrac Radio receiver yes transmitter not worth the effort ...the receiver works on 12 volts transmitter probably tube type will have multiple voltages and the power supply in the mobile housing is not a continuous duty supply and will never be...w9mwq [EMAIL PROTECTED] wrote: I have a motorola Motrac Radio, can anyone tell me if this unit can be converted to use as a repeater, and what is needed for the crystals. Any help on this would be appreciated. What could be used for a simple controller with little to no hangtime? Thanks.MathewYahoo! Groups Links* To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to:[EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to:http://docs.yahoo.com/info/terms/ Do you Yahoo!?Yahoo! Finance Tax Center - File online. File on time. Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Motorola Motrac Radio
At 02:54 PM 3/22/2004 -0600, you wrote: The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. ---Wow, it's been a number of years since I've dealt with this but as I remember, the HHT was the earliest version of a Motrac but not the only one in the series that had tubes in the xmtr. I believe ALL Motracs had at least one tube in the xmtr, but used less of them in each later version. It wasn't until the Motran that the xmtrs went all solid state (crummy PNP devices too!). Of course, I've been wrong before! Ken (has a photographic memory but lately I've been running low on film) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Motrac Radio
Joe: No, not really. I should have said that it was a Motrac-like radio since I characterized it as a later version of motrac. By my understanding and experience, there was little difference between a Motrac receiver and a Motran receiver (FET in the rf preamp instead a bipolar, etc.) There were, of course, differences in the transmitters. If I understood Matthew's e-mail, he said that it had no tubes but used Motrac cables. While I have experience with Motrac mobiles and base stations, I only have experience with Motran type base stations, (i.e., MSY type stations which had solid state 10 - 12 watt exciters). I thought that the Motrans used Motrac cables. Since he said it had no tubes, it sounds like he has a Motran. Micheal Salem N5MS mch wrote: That would be the MOTRAN. They have a boat load of round transistors in the final area. They used the same accessories as the MOTRAC. Or are you saying there really were MOTRACs with no tubes? Joe M. Micheal Salem wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
If it is a solid state Motrac then it is a Motran. A Motran is a transistorized Motrac. It will say what it near the handle. Give the model number of the radio, we can tell exactly what it is by that. Micheal Salem [EMAIL PROTECTED] wrote: Matthew: There are later versions of the Motrac which would be all solid state. A model number for a motrac would start with U23, U43, U53, etc. The tube versions would end with HHT, for example. I think that the solid state version would be a MHT or perhaps an LHT so that the solid model would be something like U43MHT. I may have gotten some of these mixed up, but I am sure that somebody will correct me. Micheal (I still use an old B73MPY VHF base station with 8560AS conduction cooled tube) Salem N5MS Mathew Quaife wrote: The unit I have here does not have any tubes in it. I got alot of post on the unit, states it had tubes, so maybe what I have here is not a motrac. All that is on the unit is a sticker that says Use motrac cable kit only, then it has the numbers TGH6002A stamped on it. Does this give any additonal information. Mathew - Original Message - From: jeremy mailto:[EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder@yahoogroups.com Sent: Sunday, March 21, 2004 9:11 PM Subject: Re: [Repeater-Builder] Motorola Motrac Radio receiver yes transmitter not worth the effort ...the receiver works on 12 volts transmitter probably tube type will have multiple voltages and the power supply in the mobile housing is not a continuous duty supply and will never be... w9mwq [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: I have a motorola Motrac Radio, can anyone tell me if this unit can be converted to use as a repeater, and what is needed for the crystals. Any help on this would be appreciated. What could be used for a simple controller with little to no hangtime? Thanks. Mathew Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Motorola Motrac Radio
I have a motorola Motrac Radio, can anyone tell me if this unit can be converted to use as a repeater, and what is needed for the crystals. Any help on this would be appreciated. What could be used for a simple controller with little to no hangtime? Thanks. Mathew Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Motrac Radio
At 09:04 PM 3/21/04 +, you wrote: I have a motorola Motrac Radio, can anyone tell me if this unit can be converted to use as a repeater, and what is needed for the crystals. Any help on this would be appreciated. What could be used for a simple controller with little to no hangtime? Thanks. Mathew The mobile Motracs are all over 30 years old and the insulation on the internal wiring (at least on mine is starting) to flake off. Given that situation I would not trust a Motrac in a mission-critical environment. The early Motracs - the HHTs used crystals in ovens. I do not know of anybody that is still making oven crystals. The LHT series and MHT series used channel elements - packaged transistorized crystal oscillators. The UHF LHTs and MHTs used a funny two-piece element that is hard to find, but a one-piece blue element can be made to work just fine by changing one resistor inside. Also the heat sinks on the tubes are made for a 10%-30% duty cycle - and the heat transfer characteristics is such that they can't suck the heat off fast enough for repeat duty. Mitreks make better low power low-duty-cycle repeaters if a crystal based radio is OK You can get them for $20-50 each. If you need a high duty cycle repeater go with a GE master-II. And if you need synthesized, two Maxtracs can be cross- connected into a dandy little low duty cycle repeater... As to a controller, any of the current crop can be set for a low hang time. The cheapest is the NHRC kit. Mike Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [[Repeater-Builder] Motorola Motrac Radio]
Don't bother. There are several other models of radios that would be better choices, such as a Micor or Mitrek which can often be found at swap meets for $25. w9mwq [EMAIL PROTECTED] wrote: I have a motorola Motrac Radio, can anyone tell me if this unit can be converted to use as a repeater, and what is needed for the crystals. Any help on this would be appreciated. What could be used for a simple controller with little to no hangtime? Thanks. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
