Showing posts with label valves. Show all posts
Showing posts with label valves. Show all posts

13 Aug 2022

Valve days....

This photo was taken about 12 years ago when we were experimenting with Sputnik valves. We made a 400mW CW transmitter (I think it was 15m) and worked the USA on a first CQ call. G4NUA is now a SK sadly.

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