[drakelist] Tee antenna
Thom R LaCosta <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Does anyone have any practical experience with a folded Tee antenna for HF? thanks 73,Thom-k3hrn www.zerobeat.net Home of QRP Web Ring, Drakelist home page, Free Classified Ads for amateur radio, QRP IRC channel Elecraft Owners Database www.tlchost.net/hosting/ *** Web Hosting as low as 3.49/month -- 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] Drake L7 Replacement power supply prototype pcb assemblies
Cleaning the shack, I have two and only two prototype L7 power supply upgrade boards. These are fully assembled and electrically tested, but NOT TESTED in the amplifier This board replaces the two diode and filter boards in the L7 supply. again, these are prototypes. Only three were made. Peter Shilton VE3AX is working on the instructions for installation in the supply. therefore I can't supply any paper work to aid installation. Let me make this as clear as possible. the voltages inside the L7 are deadly. There are no second chances. You should not attempt this unless you feel comfortable working with and have the proper test gear to do this installation. That being said.. the two prototypes are for sale. They are $100 and that includes shipping. They are prototypes. Remember.. If anyone want one, pop me a private email. I can supply photos of what they look like. again prototypes and only two here. have a great labor day weekend... Mike, WB8VGE SunLight Energy Systems The Heathkit Shop http://www.seslogic.com http://www.theheathkitshop.com/
[drakelist] WTB CPS-1
"Philip M. Roberts" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Does anyone have a CPS-1 Power supply for the CS-6 6m converter that they wish to sell? Or know where one is for sale. Phil W8UV -- 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] R4C questions
I'm lucky to have just aquired a C-line in very fine condition. Ser #s are 24xxx and the rigs have been stored in plastic wrap for years here in the high desert of NM. Most all of the tubes are Sylvania and I get 140 watts from the T4XC. The R4C rcvr is stock with a 1.2 khz plug in CW filter. There were a few intermittent troubles which were cured with DeOxit on the wafer switches. The xmtr is equivent to by B-line rigs but the rcvr seems less than an R4B ... the audio is not nearly as pleasant, nor is the selectivity. My question is: as a CW op, what is the best cure for selectivity ? I have read of the Sherwood mods and the Xtals from INRAD . I plan to order a 500 hz second IF filter from INRAD but am hoping for suggestions on the GUF-1 INRAD first IF 8khz filter. I wonder if it would be of benefit to a CW guy and wonder about the diffiulty of the modification. Anyone have an any experience with that mod ?? Easy/difficult ... worth it for CW ? Any ideas on the audio the R4B beats it HI ! any ideas welcome tks jim N5KY
Re: [drakelist] R4C questions
Hi Jim The R-4C makes a very fine CW receiver but in its standard form and without a CW filter it is lacklustre. An Inrad 500Hz filter will make a significant improvement to selectivity. The GUF-1 will add nothing worthwhile for CW and in my own opinion doesn't add too much to SSB use either. I put a GUF-1/8kHz in my R-4C here and frankly found the difference a little disappointing. That said, I'm not much of a phone operator and if I were, perhaps I might find greater utility in it. If you really want to sharpen up skirt selectivity for CW use, the way to go is with a Sherwood CF-600/6. This filter is inserted in the first i/f and uses TO5 can relays for switching. I have one of these installed in my current R-4C as I did in my previous R-4C which I owned 25 years ago. It is excellent and for a serious CW man, it's worth every cent. Installation is quite straight forward for someone competent with a soldering iron. Unfortunately the stock R-4C is a bit grungy in the audio department. It makes sense to replace the audio output stage with a modern IC amp. Sherwood does offer a kit for this too, though I think there may be others available too. Take a look at the mods offered by Rob Sherwood at www.sherweng.com My own relationship with Rob extends no further than being a very satisfied user of his products for over 25 years. Good luck. 73 Bob, 5B4AGN - Original Message - From: [EMAIL PROTECTED] To: drakelist@www.zerobeat.net Sent: Sunday, September 04, 2005 4:12 AM Subject: [drakelist] R4C questions I'm lucky to have just aquired a C-line in very fine condition. Ser #s are 24xxx and the rigs have been stored in plastic wrap for years here in the high desert of NM. Most all of the tubes are Sylvania and I get 140 watts from the T4XC. The R4C rcvr is stock with a 1.2 khz plug in CW filter. There were a few intermittent troubles which were cured with DeOxit on the wafer switches. The xmtr is equivent to by B-line rigs but the rcvr seems less than an R4B ... the audio is not nearly as pleasant, nor is the selectivity. My question is: as a CW op, what is the best cure for selectivity ? I have read of the Sherwood mods and the Xtals from INRAD . I plan to order a 500 hz second IF filter from INRAD but am hoping for suggestions on the GUF-1 INRAD first IF 8khz filter. I wonder if it would be of benefit to a CW guy and wonder about the diffiulty of the modification. Anyone have an any experience with that mod ?? Easy/difficult ... worth it for CW ? Any ideas on the audio the R4B beats it HI ! any ideas welcome tks jim N5KY
