Quote:
Originally Posted by G6Tanuki
In the first photo, is that what looks like a Nuvistor in the middle compartment next to the B7G valve?
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Yes, as I mentioned in the OP!
I used one in around 2009 in the front end of a converter for UHF to listen to space satellites, (Following a 1962? design ‘How to listen to NASA satellites.’) I’ll maybe dig out the thread, which was quite detailed.
Lawrence - thanks ! Great sleuthing!
And David - interesting , I’ve learned something completely new there.