1957 Collins KWM-1 Ham Transceiver

It took a couple weeks but finally finished this old 1957 Collins transceiver, had to replace all of the Black Beauty capacitors, repair a problem with some hacked work that had been done years ago in the first IF amplifier and clean up the rollers in the PA tank but now it’s ready to go.

[@SpinStar1956]

Well, it looks like you did a real FB job on that, so hats off to you! 😊 I would really love to own one of those, and in the past tried to get one, up until I learned that it did not have 40 or 80 m! I’ve seen the sunspot cycle so bad, that it would turn into a one band radio for sure. I have never understood why Collins would not have included 40 or 80 m.

[@W4AX]

Great work restoring a vintage Collins rig. Mack, W4AX (the guy that purchased your URC-94)

[@rondesilva9513]

Great restoration of a classic. Here in Nevada,Ham and HiFi had several Collins prototypes of tge KWM1 that were given to Collins engineers (who were hams) to test them at their stations

[@milcommguy5927]

Good job

[@michaelst.angelo423]

Nice job Ray. Looking at the capacitors it looked like you also replaced what appear to be two "postage stamp" mica capacitors. How did you determine they had to be replaced? Mike N2MS

[@rafantini8]

Its not apparent in the video but there was also a problem with low sensitivity due to one of those capacitors being open. Replaced both in the first IF instead of trying to determine which one was at fault.

[@MikePeace]

Well done Ray! 73 VK6ADA