Re: [Drakelist] TR-4C Microphone
I use a sure 444 and it works fine. My friend w2eny sells replacement mic elements for the d104 google him. George ne2i On Feb 28, 2011, at 1:38 PM, Don Miller k4...@hotmail.com wrote: Hi group, My crysral element went bad in my old D-104. What would you recommend to replace it and have good transmit audio with my TR-4C. Thanks, Don ___ 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] L-7, 3-500Z filament out??
also check the tube socket. the springs tend to lose tension and cause intermittent problems and can cause a rise in resistance and heat due to weak contact George On Dec 18, 2010, at 1:26 AM, LEE BAHR pulsa...@embarqmail.com wrote: Yes, you got it, the filament wire coming out of the glass envelope is most likely not soldered to it's pin. (Outside looks mean nothing). It could be one pin or the other. Maybe it was never soldered properly by the manufacturer but as someone else mentioned, many times the tension of the spring in the tube socket can let go and thus not make a good connection with the tube pin. then the resistance heats up the connection and the solder lets go and/or the tension on the tube socket from the heat gets even weaker. Bending the tube socket pins can help, but if the spring action is gone due to heat, the tube socket should be replaced with one with better spring tension built into the metal itself. (heat is a killer). Silver solder is a good idea too when re soldering the pins as well as a heat shield for the glass as you re-solder the two pins. You have all the good advice you need. Go do it. We all think your problem will then be solved. Lee, w0vt - Original Message - From: Joe Loverti To: drakelist@zerobeat.net Sent: Saturday, December 18, 2010 12:05 AM Subject: Re: [Drakelist] L-7, 3-500Z filament out?? Thanks for the replies Everyone, I'm gathering that it's possible for the pins to look good, with a nice closure on the end of the pin, even though the solder has re-melted and disassociated from the wire up inside?? As suggested, I will attempt to re-solder the filament pins and see what happens. I guess nothing would be lost, as the alternative is purchasing another tube. Does anyone have any suggestions for what type of solder and flux should be used in this process? Are there any special considerations that should be taken into account here due to the heat sensitivity of the application? 73 with regards, Joe Loverti Jr. WS8X ___ 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 ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] For sale Drake L7 in NY
Hi Folks I have to sell my Drake L7 Too many bills. It has the heathkit shop PS upgrade board installed and those big bias resistors replaced. (I even have an extra set of resistors) gets 1300watts out on most bands. Dont want to ship but Ill deliver in the Tri state NY area George NE2I ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] WTB Drake TR4
Looking for a working TR4 Dont really need the PS but Ill take it if you have one. This was my first rig when I started out 15 years ago. George NE2I ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [drakelist] Metal Varnish Question
George Cortez Jr [EMAIL PROTECTED] made an utterance to the drakelist gang -- wmacleod wrote: Hi Drakelist The alloy chassis used in the Drake C Line series appear to have been dipped or sprayed with a light yellow-gold protective varnish or lacquer possibly to protect against corrosion. This is what gives the chassis a light golden appearance. Does anyone know of a distributor who supplies a similar type of metal varnish or lacquer? Wade VA3HM Try eastwood automotive they are online This is really a plating but it can be duplicated in paint. George NE2I -- Submissions:drakelist@zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] TR-4C
George Cortez Jr [EMAIL PROTECTED] made an utterance to the drakelist gang -- inrad but they are pricey [EMAIL PROTECTED] wrote: Hello: My TR-4C is still not working on any bands. I have the 9 Mhz signal going into the lower SSB 9 mhz filter and nothing coming out. The USB filter does pass the signal ok. So, it looks like I have a bad lower ssb filter. Are they available anywhere? I need some help finding one. There may still be other things wrong with the TR-4C but that is as far as the signal goes now. I would appreciate any help or suggestions. Thanks, Terry, W8NJR Create a Home Theater Like the Pros. Watch the video on AOL Home http://home.aol.com/diy/home-improvement-eric-stromer?video=15?ncid=aolhom000301. -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] TR-4C
George Cortez Jr [EMAIL PROTECTED] made an utterance to the drakelist gang -- I opened mine up and it wasnt that hard, Just be careful of the tiny wires on the coil George NE2I [EMAIL PROTECTED] wrote: OK thanks Gary. I thought it might be the diodes. I have 9 mhz signal going in and nothing coming out of T14. It looks a little tricky getting T14 out but I think that is the next step. I'll let you know what I find after I get it open. I better order some diodes! Terry In a message dated 3/22/2008 11:54:24 A.M. Eastern Daylight Time, [EMAIL PROTECTED] writes: Garey Barrell [EMAIL PROTECTED] made an utterance to the drakelist gang -- You can open up the can and replace the diodes. The originals are Germanium and can be replaced with 1N541s (if you can find them, unlikely) or with 1N5711 or other Schottky diodes. You may find when you open it up that the diodes are ok, but have managed to short to the can. 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 4-B, C-Line TR-4/C Service Supplement CDs www.k4oah.com [EMAIL PROTECTED] wrote: I have a TR-4C that is losing the 9 mhz signal in T14. I assume the diodes are out. Is this repairable or is the thing junk? Terry, W8NJR -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- Create a Home Theater Like the Pros. Watch the video on AOL Home http://home.aol.com/diy/home-improvement-eric-stromer?video=15?ncid=aolhom000301. -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] T4X transformer 14
George Cortez Jr [EMAIL PROTECTED] made an utterance to the drakelist gang -- Thanks for the reply, Garey I did check it and it seemed ok. I did replace C9 a 27pf cap on the output of the xfmr because it was damaged when I removed T14. I put it all back together and now I see output. It gets down to the mixer and then gets weak. It never does make it to the driver tube. I may need to swap the mixer or driver tube and I have them on order. This is a first trouble shooting with Drake equipment and using the o scope. It makes things a lot easier. Thanks George Cortez NE2I Garey Barrell wrote: Garey Barrell [EMAIL PROTECTED] made an utterance to the drakelist gang -- George - Unless the coil is physically damaged, the problem might be with the diodes. They have a penchant for shorting to the can, or may just be blown. They are germanium 1N270s, but can be replaced with Schottky 1N5711 or other modern diode. They really don't need matching because the modern diodes are so much more uniform in manufacture. If you have a DMM with a Diode Test function, you can select four with similar forward junction voltages. 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 4-B, C-Line TR-4/C Service Supplement CDs www.k4oah.com George Cortez Jr wrote: George Cortez Jr [EMAIL PROTECTED] made an utterance to the drakelist gang -- Hi all Does anyone have a T14 from a junker T4X? Thanks George NE2I -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net -- -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
[drakelist] T4X transformer 14
George Cortez Jr [EMAIL PROTECTED] made an utterance to the drakelist gang -- Hi all Does anyone have a T14 from a junker T4X? Thanks George NE2I -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] IRC .82ohm 2W SPH resistor
George Cortez Jr [EMAIL PROTECTED] made an utterance to the drakelist gang -- Mike Bryce wrote: the reason is not really clear.. but here goes if there is a fault in one or both of the tubes, or a short circuit someplace on the +2700 volt line this resistor acts like a fuse and pops open. the problem is that nasty 2700 volts! as the resistor opens up, the voltage will simply jump over the now carbonized resistor. in fact, it would be more accurate to call it a high voltage fuse instead of a resistor! aside from the voltage it has to carry, it must be able to conduct the necessary current as well. that's why is a special critter... and very hard to come by. perhaps I could purchase some from the one company via my heathkit shop since they won't sell to anyone not in the trade?? Ill buy a spare just in case. BTW the L4b L7 power supply board works great. George NE2I I Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.theheathkitshop.com/ J e e p o|||o Note: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced On Nov 6, 2007, at 1:42 PM, Tom Bowman wrote: Hi, Where is the resistor being used in the circuit? Any idea why a 1 Ohm, 5% SPH resistor 66-SPH1R00JLF http://www.mouser.com/search/ProductDetail.aspx?R=SPH1R00JLFvirtualkey6620virtualkey66-SPH1R00JLF Mouser, would not work? 73, tom, WA3REY On Nov 6, 2007 12:49 PM, MT [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] L4B and L7 power supply parts, Drake Forum
George Cortez Jr [EMAIL PROTECTED] made an utterance to the drakelist gang -- No wrong guy. Heatkit shop is still open! George NE2I [EMAIL PROTECTED] wrote: Hi Evan, Is this the Heathkit Shop we are talking about? This is the fellow who has had the kits for upgrading various Drake and Heath power supplies? Why is he closing? 73 John, W4AWM ** See what's new at http://www.aol.com -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
[drakelist] Drake L7 capacitor question
George Cortez Jr [EMAIL PROTECTED] made an utterance to the drakelist gang -- Hi I need a description of C48 49 and 50 and where they are located. This is in the tank circuit Thanks George NE2I -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
