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Hi Folks, Can anyone here write back and tell me the height of TR7 boards.? I am building sets of extender boards and need that dimension. Also, if there are technicians here willing to test my

Peter: First...a small correction...not *THE *previous owner...but *A *previous owner. Contact Paul Kramer, K0UYA, for his picture set on how he replaced that switch with a stripped down multiple

Rob, Thanks for sharing your insights on this. What I think you are saying is that AGC attack distortion is a “feature” of some of the designs in the receivers by Collins and Drake, and that this

There is a company on the east coast of ?the US that rebuilds switches. ? Not cheap though. ? Can't ?recall the name of the company.

Thanks Gregory. ?Without a pic, hard to know what a vendor is selling.

Hello to all.? It's been a minute since posting here but I keep up to date on what's up just the same.? Always interesting and informative.? This spring will be Delhi tower antenna erection, and

You can detune using a clip-lead jumper. Much safer and stable. Steve Wedge, W1ES/4 Time flies like an arrow. Fruit flies like a banana. Sent from Proton Mail for iOS

I found that the majority of problems was with the connectors on the mother board. Pull all boards and clean the connectors, dry joints were also a problem on both the mother board and the individual

As noted by Garey Barrell, K4OAH (2015), the Switchcraft 3502 is a great RCA connector, with a variety of finishes (chrome to matte black) https://www.switchcraft.com/assets/1/27/rca_plugs.pdf?7073

Cinch Jones 300-series plugs https://www.mouser.com/datasheet/2/643/ds_CCS_IND_jones_plugs_300_series-1358563.pdf Drake TR-7 transceiver (Rear Panel) has an 8-position Cinch Jones connector (308) for

Evan, K9SQG was the NCS for today's Drake Technical net on 7.238. He had 39 check-ins under good band conditions. Here are the radio's that were used to check-in. B Line 5 C Line 3 TR3 2 TR4 12 TR5 4

See: /g/DRAKE-RADIO/message/50555 73 -Jim NU0C "Doug Crompton WA3DSP" <wa3dsp@...> wrote:

Curious if Drake supplied RCA cables to connect the twins together. I count 6 sets. I have plenty of RCA cables from years of audio and video connections but I want to make a nice set specifically for

The only time I ever used the FAST agc position, is when listening to AM signals, like SWBC.....esp on the 41 and 49m SWBC? bands...both of which can experience rapid, fast fades. What might make

Somehow this discussion got off on measuring plate current, which makes no sense since there is already a means of checking cathode current using the two cathode resistors. In any case, my issue was

My memory isn't good enough to give specifics but I do remember that there are different DIN connectors that retain the same designation. ?As I vaguely recall, it might be 4, 5, pin styles. While

Hi Bill, There are multiple issues to consider. I always felt the Fast AGC decay speed was useless, and installing an extra C value (or R/C pair) across the Fast setting is a good idea. I would keep

Rob, Thanks for the info. I have a couple of questions: -Is the distortion I am experiencing on the M & F AGC settings normal? If not, have you seen this problem before? -The only mod I have found is

Be sure the Drake AGC circuit hasn’t been modified. Having worked on many R-4Cs over a 40 year time period it wasn’t unusual to have radios come into the lab with AGC issues. Also in that time