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Nice write-up. You found two of the most common TR7 failures, both on the PS board. C2108 us the only capacitor on my "must replace" list for the TR7. It is not a matter of if it fails, but rather

Peter, Not sure if the T4XC is the same it has a 4-wafer switch the T4XB is a 3-wafer switch.? Unfortunately not only is the contact gone, but the wiper has a big chunk missing as well I think it's

Follow the Schematic in the Service Manual and build one, See the following link for details of the display jumper board The perfboard and the 0.156 pins are bought from Mouser or Digikey. The perf

Dave: If Gary can't help you, I have lots of T-4XC parts that are probably the same. Get back to me if Gary cannot help. Even a single contact CAN be replaced, though not an easy exercise! 73 Peter

I wish someone would tell me why in the world ANY net for Vintage (or any other HF radio for that matter) would list a "Net" frequency on a 1/2kHz "channel"? Why exclude the vintage Marine, commercial

Okay, this will take a while lots of wires to remove and label I'll send pic's tomorrow. Thanks, Dave

Hello to all. Does anyone know where I might find a complete set of the Jumper/Extender Boards including the Digital jumper/Extender Board for the TR7A, TR7 and R7A radios? Thank you. 73, Chuck

I would have a better chance of success if I could clearly see the contacts on both sides of the bad wafer. Gary W0DVN

Do you need the switch wafer removed for pictures or just a picture of the whole switch itself mounted in the radio? Dave

After reading this thread today and realizing I didn't have the docs for my 2-B, I wrote to Carol at the specified email and got a nice reply 10 minutes later ( ! ). If you go through the listings and

It is good on QTH. It’s a bi top a chore to replace wafers on a three section switch but at least it’s the rear one. Gary W0DVN

Yes it is. Gary W0DVN

Gary, Is your email on QRZ good? The function switch has three wafers it's the rear most wafer. Function switch switches CW, TUNE, SSB, AM Dave

I have a large supply of rotary switch wafers. Can you send me a detailed, in focus photo of your switch wafer, preferably both sides? Gary W0DVN

I've been going through my B-line the last few weeks and have the R4B running really well such amazing audio compared to the R4C.? So next in line was the T4XB and while cleaning rotary switch

Mark, thanks for that information! I am willing to be a NCS if we can have this on days other than Sunday or Monday. Of course, things work better with additional NCS folk. What say? Steve Wedge,

Greg, Thanks for catching that. Here are the vintage SSB & AM nets that I know of. There might be more, but these are the ones that I know of. I added the West coast Drake net. 73's, Mark, WB0IQK

Via FF version 111.0.1 working for me - likewise in the UK The CDs are gold, physical or downloaded. Michael 2E0IHW

Brien Pepperdine writes: I think you need to replace your dummy load with an antenna. --lyndon

Everyone, I did get a confirmation from Carol that all is well. Looking at the web page I do not see anywhere to select a product and pay for it. Also what are the differences between the T-4X &