Re: [Drakelist] TR7 ALC access when not using PS7
Ron - Pin 9 of the PS-7 Control connector. The 10 Pin Jones connector. Pin 10 is ground. Some day when you're bored, you could go in and link Pin 9 over to that SPARE phono jack just above it. 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs Ron wrote: I am sure that are at least a few folks who are using the TR7 with a power supply other than the PS7. And I am thinking of those some are using linears. So where and how did you gain access to the ALC line of the TR7? TNX es 73, Ron WD8SBB ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Ron - Oh, and the VOX relay contact is right next to it on Pin 8. A REAL relay contact too, none of this wimpy reed relay stuff. :-) 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs Ron wrote: I am sure that are at least a few folks who are using the TR7 with a power supply other than the PS7. And I am thinking of those some are using linears. So where and how did you gain access to the ALC line of the TR7? TNX es 73, Ron WD8SBB ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
You need a Cinch-Jones S-310 CCT plug and connect the shield of the alc cable to pin 10. Connect the center to pin 9. Plug into the matching 10 pin PS7 socket on the rear of the TR7. 73, Joe KC9LAD At 07:41 AM 1/28/2012, you wrote: I am sure that are at least a few folks who are using the TR7 with a power supply other than the PS7. And I am thinking of those some are using linears. So where and how did you gain access to the ALC line of the TR7? TNX es 73, Ron WD8SBB ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Curious as to why the VOX and ALC come from the power supply rather than the rig itself. I always thought that was a strange arrangement. Fortunately, I have a stereo cable with color coded "channels" so it makes connection simple but would be simpler to run shorter leads directly from the rig to the linear. Drake always seemed to have good reasons for what they did but this one has me puzzled, hi hi... 73, Evan, K9SQG -Original Message- From: Garey Barrell To: Ron Cc: drakelist Sent: Sat, Jan 28, 2012 9:37 am Subject: Re: [Drakelist] TR7 ALC access when not using PS7 Ron - Oh, and the VOX relay contact is right next to it on Pin 8. A REAL relay contact too, none of this wimpy reed relay stuff. :-) 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs Ron wrote: > I am sure that are at least a few folks who are using the TR7 with a power supply other than the PS7. And I am thinking of those some are using linears. > > So where and how did you gain access to the ALC line of the TR7? > > TNX es 73, > Ron WD8SBB > > ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
On Sat, 28 Jan 2012 09:36:20 -0500, Garey Barrell wrote: >Oh, and the VOX relay contact is right next to it on Pin 8. A REAL relay >contact too, none of this >wimpy reed relay stuff. :-) Or surface mount transistors. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
On Sat, 28 Jan 2012 10:32:36 -0500 (EST), K9sqg wrote: >Curious as to why the VOX and ALC come from the power supply rather than the >rig itself. I always thought that was a strange arrangement. Perhaps they though the rear panel of the radio was getting too cluttered. More puzzling/annoying to me is why some of the asian rigs use a hard to source mega-DIN connector for these connections. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Hi Evan - Simple!! The TR-3 was designed for mobile use, no amplifiers and minimum number of connectors to undo. This is the reason for the speaker connector coming out of the back of the power connector. The AC-3 had no VOX or ALC connections either. Then, here comes the Twins. My first T-4X came with an AC-3, so no provision for VOX or ALC. I, and no doubt many others, merely rewired the pigtail coming out of the back of the power connector from the speaker leads (no longer needed, since the receiver had a speaker jack) to the VOX relay connector. Then the AC-4 came along, and to keep everything compatible (and avoid multiple pigtails coming out of the back of the power connector!) the appropriate connectors were put on the AC-4. Simple! :-) 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs K9sqg wrote: Curious as to why the VOX and ALC come from the power supply rather than the rig itself. I always thought that was a strange arrangement. Fortunately, I have a stereo cable with color coded "channels" so it makes connection simple but would be simpler to run shorter leads directly from the rig to the linear. Drake always seemed to have good reasons for what they did but this one has me puzzled, hi hi... 73, Evan, K9SQG -Original Message- From: Garey Barrell To: Ron Cc: drakelist Sent: Sat, Jan 28, 2012 9:37 am Subject: Re: [Drakelist] TR7 ALC access when not using PS7 Ron - Oh, and the VOX relay contact is right next to it on Pin 8. A REAL relay contact too, none of this wimpy reed relay stuff. :-) 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs http://www.k4oah.com>> Ron wrote: > I am sure that are at least a few folks who are using the TR7 with a power supply other than the PS7. And I am thinking of those some are using linears. > > So where and how did you gain access to the ALC line of the TR7? > > TNX es 73, > Ron WD8SBB > ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Remember Jim, today's engineering staff (or should I say finance and marketing engineering staff) is not to worry about your cost of ownership. They are there to get the equipment sold at best profit margin possible and then obsoleted so that you will buy another. It's all about cash flow. BTW I am not blaming the companies. Unfortunately, we do this to ourselves with the way we invest, shop and consume. 73 Ron WD8SBB --- On Sat, 1/28/12, Jim Shorney wrote: > From: Jim Shorney > Subject: Re: [Drakelist] TR7 ALC access when not using PS7 > To: "drakelist@zerobeat.net" > Date: Saturday, January 28, 2012, 11:01 AM > On Sat, 28 Jan 2012 10:32:36 -0500 > (EST), K9sqg wrote: > > >Curious as to why the VOX and ALC come from the power > supply rather than the rig itself. I always thought > that was a strange arrangement. > > > Perhaps they though the rear panel of the radio was getting > too cluttered. More > puzzling/annoying to me is why some of the asian rigs use a > hard to source > mega-DIN connector for these connections. > > 73 > > -Jim > > > -- > Ham Radio NU0C > Lincoln, Nebraska, U.S.S.A. > TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, > R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, > all the time! > > "Give a man a URL, and he will learn for an hour; teach him > to Google, and he will learn for a lifetime." > > HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ > http://incolor.inetnebr.com/jshorney > http://www.nebraskaghosts.org > > > > ___ > Drakelist mailing list > Drakelist@zerobeat.net > http://mailman.zerobeat.net/mailman/listinfo/drakelist > ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Gary, Any ideas on where to put another RCA jack for the VOX relay? Maybe steel the counter input? 73, Ron WD8SBB --- On Sat, 1/28/12, Garey Barrell wrote: > From: Garey Barrell > Subject: Re: [Drakelist] TR7 ALC access when not using PS7 > To: "Ron" > Cc: drakelist@zerobeat.net > Date: Saturday, January 28, 2012, 9:36 AM > Ron - > > Oh, and the VOX relay contact is right next to it on Pin > 8. A REAL relay contact too, none of this > wimpy reed relay stuff. :-) > > 73, Garey - K4OAH > Glen Allen, VA > > Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line > and TR-4/C Service Supplement CDs > > > > Ron wrote: > > I am sure that are at least a few folks who are using > the TR7 with a power supply other than the PS7. And I > am thinking of those some are using linears. > > > > So where and how did you gain access to the ALC line of > the TR7? > > > > TNX es 73, > > Ron WD8SBB > > > > > ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Ron - I'd be inclined to use the fixed 'line' AUDIO jack. The counter input can be handy, obviously as a counter, but also as a good quick troubleshooting tool for the radio. The other alternative of course is to get the proper connector, they are available, or use the 'spade' type power connectors used in auto stuff. They will slip right over the Jones pins. <http://www.electronicplus.com/content/ProductPage.asp?pagenum=1&lname=&maincat=wc&subcat=wci> 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs Ron wrote: Gary, Any ideas on where to put another RCA jack for the VOX relay? Maybe steel the counter input? 73, Ron WD8SBB --- On Sat, 1/28/12, Garey Barrell wrote: From: Garey Barrell Subject: Re: [Drakelist] TR7 ALC access when not using PS7 To: "Ron" Cc: drakelist@zerobeat.net Date: Saturday, January 28, 2012, 9:36 AM Ron - Oh, and the VOX relay contact is right next to it on Pin 8. A REAL relay contact too, none of this wimpy reed relay stuff. :-) 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs Ron wrote: I am sure that are at least a few folks who are using the TR7 with a power supply other than the PS7. And I am thinking of those some are using linears. So where and how did you gain access to the ALC line of the TR7? TNX es 73, Ron WD8SBB ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Gary, You mentioned the VOX pin being a real relay. The H&K pg 37 Nov 1988 QST shows a way to use the motherboard 10V TX line and a few components to key your amp sooner/faster. I am looking at doing that only for the extra "speed" in getting the amp in line. Based on my tests so far, it looks like I will load <.5ma on the 10V TX line. Thoughts? TNX es 73, Ron WD8SBB --- On Sat, 1/28/12, Garey Barrell wrote: > From: Garey Barrell > Subject: Re: [Drakelist] TR7 ALC access when not using PS7 > To: "Ron" > Cc: drakelist@zerobeat.net > Date: Saturday, January 28, 2012, 9:36 AM > Ron - > > Oh, and the VOX relay contact is right next to it on Pin > 8. A REAL relay contact too, none of this > wimpy reed relay stuff. :-) > > 73, Garey - K4OAH > Glen Allen, VA > > Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line > and TR-4/C Service Supplement CDs > > > > Ron wrote: > > I am sure that are at least a few folks who are using > the TR7 with a power supply other than the PS7. And I > am thinking of those some are using linears. > > > > So where and how did you gain access to the ALC line of > the TR7? > > > > TNX es 73, > > Ron WD8SBB > > > > > ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Hi Jim: Those Din types are really no harder to find than the multi-pin Jones conn's ! :) Curt On 1/28/2012 11:01 AM, Jim Shorney wrote: On Sat, 28 Jan 2012 10:32:36 -0500 (EST), K9sqg wrote: Curious as to why the VOX and ALC come from the power supply rather than the rig itself. I always thought that was a strange arrangement. Perhaps they though the rear panel of the radio was getting too cluttered. More puzzling/annoying to me is why some of the asian rigs use a hard to source mega-DIN connector for these connections. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
On Sat, 28 Jan 2012 11:53:15 -0500, Garey Barrell wrote: >I'd be inclined to use the fixed 'line' AUDIO jack. The counter input can be >handy, obviously as a >counter, but also as a good quick troubleshooting tool for the radio. Or just drill a hole for another RCA jack, or even a mini "earphone" jack. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Yeah, I understand engineering to price points. On the smaller rigs, it's more an issue of availabe real estate on the rear panel. Doesn't mean I have to LIKE it... :) 73 -Jim On Sat, 28 Jan 2012 08:31:30 -0800 (PST), Ron wrote: >Remember Jim, today's engineering staff (or should I say finance and marketing >engineering staff) is not to worry about your cost of ownership. They are >there to get the equipment sold at best profit margin possible and then >obsoleted so that you will buy another. It's all about cash flow. > >BTW I am not blaming the companies. Unfortunately, we do this to ourselves >with the way we invest, shop and consume. -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Ron - Yes, that is a good way to speed up the amp keying. A half mA shouldn't be a problem, those lines are 'fused' very closely, but they should survive that! :-) Saves a whole ~25 mSec!! 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs Ron wrote: Gary, You mentioned the VOX pin being a real relay. The H&K pg 37 Nov 1988 QST shows a way to use the motherboard 10V TX line and a few components to key your amp sooner/faster. I am looking at doing that only for the extra "speed" in getting the amp in line. Based on my tests so far, it looks like I will load<.5ma on the 10V TX line. Thoughts? TNX es 73, Ron WD8SBB ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
On Sat, 28 Jan 2012 13:08:15 -0500, Garey Barrell wrote: > A half mA shouldn't be a problem, those lines >are 'fused' very closely, but they should survive that! :-) That's actually funny, because years ago I first heard tech calling transistors "three-legged fuses". A corollary to Murphy's Law is "The transistor will always blow to protect the fuse". 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Garey and all, To my way of thinking, there is less chance of reversing the connections if you use a Jones plug. It's hard enough to keep everything straight when you confront the maze of wires for multiple transceivers and other equipment even if you have only one amplifier. 73, Bob AD3K -Original Message- From: drakelist-boun...@zerobeat.net [mailto:drakelist-boun...@zerobeat.net] On Behalf Of Garey Barrell Sent: Saturday, January 28, 2012 11:53 AM To: Ron Cc: drakelist@zerobeat.net Subject: Re: [Drakelist] TR7 ALC access when not using PS7 Ron - I'd be inclined to use the fixed 'line' AUDIO jack. The counter input can be handy, obviously as a counter, but also as a good quick troubleshooting tool for the radio. The other alternative of course is to get the proper connector, they are available, or use the 'spade' type power connectors used in auto stuff. They will slip right over the Jones pins. <http://www.electronicplus.com/content/ProductPage.asp?pagenum=1&lname=&main cat=wc&subcat=wci> 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs Ron wrote: > Gary, > Any ideas on where to put another RCA jack for the VOX relay? Maybe steel the counter input? > > 73, > Ron WD8SBB > > --- On Sat, 1/28/12, Garey Barrell wrote: > >> From: Garey Barrell >> Subject: Re: [Drakelist] TR7 ALC access when not using PS7 >> To: "Ron" >> Cc: drakelist@zerobeat.net >> Date: Saturday, January 28, 2012, 9:36 AM Ron - >> >> Oh, and the VOX relay contact is right next to it on Pin 8. A REAL >> relay contact too, none of this wimpy reed relay stuff. :-) >> >> 73, Garey - K4OAH >> Glen Allen, VA >> >> Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement >> CDs >> >> >> Ron wrote: >>> I am sure that are at least a few folks who are using >> the TR7 with a power supply other than the PS7. And I am thinking of >> those some are using linears. >>> So where and how did you gain access to the ALC line of >> the TR7? >>> TNX es 73, >>> Ron WD8SBB >>> >>> ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
Jim Shorney wrote: On Sat, 28 Jan 2012 13:08:15 -0500, Garey Barrell wrote: A half mA shouldn't be a problem, those lines are 'fused' very closely, but they should survive that! :-) That's actually funny, because years ago I first heard tech calling transistors "three-legged fuses". A corollary to Murphy's Law is "The transistor will always blow to protect the fuse". Oh yeah, that's been a LONG time ago.. :-) Best description we had at the time.. I was working on 400 MHz power amplifiers in the early 60's, and both _very_ accurate. One of the engineers I worked with came into my office one day and said, "You know what, you can SEE a little blue flash through the ceramic cap" on the power transistors we were 'attempting' to use. Of course every time one went out it magnetized the ferrite core(s) in the matching network so that was just one more step to get back where we were before we got like we were then! :-) Made it though, 40W output w/ 2W input at 4xx. (Command Destruct frequency, so classified.) 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 ALC access when not using PS7
On Sat, 28 Jan 2012 13:52:08 -0500, Garey Barrell wrote: >you can SEE a little >blue flash through the ceramic cap Nice of them to design the device to contain the magic blue smoke, though. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
