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Thank you, great article...WD4AGG

Good day, Got the novice station online and having some fun with 2C, 2NT, 2BQ, and HA5 VFO. Everything is running great including muting and spotting, but wanted to ask about the T/R delay. At full

A couple of comments: The getter in receiving tubes (including TV sweep tubes) should be silvery, when it starts to be worn it becomes sort of white or cloudy. Heavily used tubes may show this around

This reminds me of a similar problem I had with my KWM-2. Very high impedance in the T/R circuit. It would take a second or two to go back into receive. Problem was a leaky capacitor. My Heathkit cap

Hello list members I’m in the San Diego area and would like to know if Is this the correct list for help or finding someone to work on a Drake UV3 tri band radio? Thank you Bob Kd6gnb

If the Richard you mean is me I don't have the answer but I have had problems with gassy tubes affecting the AVC. In may case the slow AVC was too fast. Gary Barrell told me it was probably a gassy

By the way the Antique Radios website has an interesting forum going on on this very subject

sounds like some good sleuthing there Sherlock! I am interjecting here from experience about heater to cathode leakage. This sounds like what may be happening here. Few tube testers have this test and

I may have found the problems. Note the use of plural here. I'm going to let it sit for an hour before I declare "Victory!". I did what I should have initially done when confronted by such a bizarre

Thanks, Gary. Yeah, I swapped out tubes already but one at a time. I have cleaned out the sockets and used a Proxabrush with DeOxIt in all the sockets. I've changed four more resistors and thought I

Based on my limited experience, knowledge and baloney quotient, I offer the following: Anytime I have a difference in cold vrs warmed up as regards to performance, I suspect: First of all tubes: Even

Wow, poor Steve.. Sounds like you have replaced everything, what a tricky one. The one thing that I know pulls the AVC line is gassy tubes.? I don't know how much the gas changes with warmup, maybe

I've completed sorting through hundreds of CMOS chips (the old Motorola 4000-series) and fixed my extra Trac TE144 keyer. It was good to actually fix something, for a change. BTW, if any of you need

Gary & Steve, RRRR Understand. I just ran a on air test with my friend Marty, KK4RF....it worked flawlessly running separate. I have a counter monitoring my transmit frequency which help when doing a

Bill, The offset is so high because the carrier oscillator signal has to go through the crystal filter.? As John's mod lowered the offset, going farther outside the filter reduces the drive and

Put the carrier oscillator back. Pad/adjust the C59(?) in the R-4x Or put in the Drake recommended FSK circuit and reconfigure it for RIT. Bill, you can use EXT MUTE and the sidetone if you want.?

Thanks Greg. Perfect. -- 73 John?N4YE

Back in the '80s when I was running several C lines for serious CW contesting, I found I could somewhat mitigate the extremely high transmit frequency offset in CW by padding down the T-4XC carrier

Good to hear you got it sussed, Bill! Yeah, Drake (and many manufacturers) long ago decided on, what it to me and a lot of people who operate CW, a very high frequency offset. Unfortunately, there's

GM Gary, I ran some test with the set up and it works very well.? Thank You Bill N3WM