Re: [drakelist] Line Blue Filters
Mike; You can't go wrong with Donnie Garret's white and blue filters for the 4-line and the 7-line. They look great on all the Drakes. He carries a really interesting array of common wear parts for many different models. Just a very happy customer! www.wa9tgt.com 73 Peter VE3AX - Original Message - From: Mike Williams To: Drakelist Sent: Sunday, January 14, 2007 10:22 AM Subject: [drakelist] Line Blue Filters I know this has been on the list many times; anyone know a good source for replacement blue panel filters for the TR7 and RV7? Thanks, Mike W4DL
Re: [drakelist] AC-4R upgrades
An open 220k bleeder resistor makes sense. I guess you could check that by disconnecting it and checking the resistance. Makes me wonder what would cause it to fail. Assuming 250 volts it would need to dissipate 0.28 watt. If it's a 1/2 watt carbon composition resistor, it might have increased in value over time. Those resistors are known to do that. -- Original message -- From: Ken Winterling [EMAIL PROTECTED] Ken Winterling made an utterance to the drakelist gang -- Tom, There is a 220K bleeder/load resistor, R8, across the medium B+, 250V, supply to ground. If it is open the medium B+ will be pulled up toward the HV. Let us know what you find. Ken, WA2LBI On 1/14/07, Tom Taylor wrote: Still working on the AC-3... The drakelist wisdom was the 20k load resistor didn't present enough of a load, compared to the original 10k resistor, and that was the reason the HV kept climbing. I ordered a 10k 10w resistor and it recently arrived and I installed it in place. Note that this resistor connects the HV+ with the medium voltage B+ (which seems odd). With this new resistor, the HV now reads a reasonable and respectable 720v (no load). That's good. But the medium voltage now reads 570v !!! I can't explain it. What's different about the medium voltage supply is I replaced the two 100 uf caps with 330 uf caps and the 80 uf cap with a 120 uf. That's what I had in my junk box. Why is that supply so over-voltage now? Perhaps I have a wiring error, though I carefully checked for errors. Thanks, Tom n7tm -- Submissions: drakelist@www.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] AC-4R upgrades
Ken Winterling [EMAIL PROTECTED] made an utterance to the drakelist gang -- Tom, There is a 220K bleeder/load resistor, R8, across the medium B+, 250V, supply to ground. If it is open the medium B+ will be pulled up toward the HV. Let us know what you find. Ken, WA2LBI On 1/14/07, Tom Taylor [EMAIL PROTECTED] wrote: Still working on the AC-3... The drakelist wisdom was the 20k load resistor didn't present enough of a load, compared to the original 10k resistor, and that was the reason the HV kept climbing. I ordered a 10k 10w resistor and it recently arrived and I installed it in place. Note that this resistor connects the HV+ with the medium voltage B+ (which seems odd). With this new resistor, the HV now reads a reasonable and respectable 720v (no load). That's good. But the medium voltage now reads 570v !!! I can't explain it. What's different about the medium voltage supply is I replaced the two 100 uf caps with 330 uf caps and the 80 uf cap with a 120 uf. That's what I had in my junk box. Why is that supply so over-voltage now? Perhaps I have a wiring error, though I carefully checked for errors. Thanks, Tom n7tm -- Submissions:drakelist@www.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] Line Blue Filters
DW Holtmnan [EMAIL PROTECTED] made an utterance to the drakelist gang -- VE3AX wrote: Mike; You can't go wrong with Donnie Garret's white and blue filters for the 4-line and the 7-line. They look great on all the Drakes. He carries a really interesting array of common wear parts for many different models. Just a very happy customer! www.wa9tgt.com http://www.wa9tgt.com 73 Peter VE3AX - Original Message - *From:* Mike Williams mailto:[EMAIL PROTECTED] *To:* Drakelist mailto:drakelist@www.zerobeat.net *Sent:* Sunday, January 14, 2007 10:22 AM *Subject:* [drakelist] Line Blue Filters I know this has been on the list many times; anyone know a good source for replacement blue panel filters for the TR7 and RV7? Thanks, Mike W4DL Hello, I will second that on Donnie's site. Excellent stuff. www.wa9tgt.com http://www.wa9tgt.com Best, DW Holtman WB7SSN -- Submissions:drakelist@www.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 --
[drakelist] R8 knob sold
Fellow Drake enthusiasts, the cast aluminum knob for the R8 has been sold. Thanks for your inquiries. Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more.
Re: [drakelist] AC-4R upgrades
Ken Winterling [EMAIL PROTECTED] made an utterance to the drakelist gang -- According to Tom this supply also had an open 10K HV bleeder/load resistor. Whatever caused it to fail may have caused the 220K resistor to fail. I'm waiting for Tom's response to see what he found. Ken, WA2LBI On 1/15/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: An open 220k bleeder resistor makes sense. I guess you could check that by disconnecting it and checking the resistance. Makes me wonder what would cause it to fail. Assuming 250 volts it would need to dissipate 0.28 watt. If it's a 1/2 watt carbon composition resistor, it might have increased in value over time. Those resistors are known to do that. -- Original message -- From: Ken Winterling [EMAIL PROTECTED] Ken Winterling made an utterance to the drakelist gang -- Tom, There is a 220K bleeder/load resistor, R8, across the medium B+, 250V, supply to ground. If it is open the medium B+ will be pulled up toward the HV. Let us know what you find. Ken, WA2LBI On 1/14/07, Tom Taylor wrote: Still working on the AC-3... The drakelist wisdom was the 20k load resistor didn't present enough of a load, compared to the original 10k resistor, and that was the reason the HV kept climbing. I ordered a 10k 10w re sistor and it recently arrived and I installed it in place. Note that this resistor connects the HV+ with the medium voltage B+ (which seems odd). With this new resistor, the HV now reads a reasonable and respectable 720v (no load). That's good. But the medium voltage now reads 570v !!! I can't explain it. What's different about the medium voltage supply is I replaced the two 100 uf caps with 330 uf caps and the 80 uf cap with a 120 uf. That's what I had in my junk box. Why is that supply so over-voltage now? Perhaps I have a wiring error, though I carefully checked for errors. Thanks, Tom n7tm -- Submissions: drakelist@www.zerobeat.net Unsubscribe: m [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:drakelist@www.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 --
[drakelist] want
Gary Poland [EMAIL PROTECTED] made an utterance to the drakelist gang -- Anyone have a good spare TR-7 VCO board they care to part with?? 73, Gary W8PU http://home.cinci.rr.com/w8pu -- Submissions:drakelist@www.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 --
