Been looking at putting a filter in my FT-817 (non-ND). I see the standard CW, narrow CW, and a SSB filter. The YF-122 series. Are there other...
I had recently bought a second 32S1 as a spare and found two issues with the Exciter Tuning assembly that move the 4 x ferrite slugs for the 6AH6...
Greetings, I recently read the very informative article by K9STH about why not use 6146B tubes in place in the original 6146 or 6146A in the 32S1...
My 75S3 s/n 10535 uses 6U8's for the HF oscillator, first and second mixer and the PTO. At some point they changed to 6EA8's but I've yet to find...
Cedar Rapids, Iowa Gazette: Time machine: Cedar Rapids inventor pushed communication boundaries, led Fortune 500 company...
Kind of a two-part question. I've been using a KWM-1 and KWM-2A for years. I've just picked up a 75S-1 and have a 32S-1 on the way, but I've never...
Hi, Recently acquired the Collins KWM-2, who match with 9th-edition 1978 manual. The transmitter is OK. The receiver is with loss sensitivity of...
Does anyone have or know where I can download schematics or photos/instructions for the Waters model 337-KWM-2 Notch filter? I scored one from...
I have a KWM2 that works fine on any band and receives good in LSB, but it does't transmit on LSB. It has full power output in USB and AM but...
