Four-pin plastic base with tipped S-shaped envelope. Donor card reads: "Triode made by Elman B. Myers in the old Music-Master laboratories in Betzwood, Pa., during the winter of 1926-27. Given to [me] ...
We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen environmental ...
by American Radio Relay League Publication date 1942 Topics radio amateur, radio, tube radio, Folkscanomy Electronics Collection comics_inbox; comics; folkscanomy Language English Item Size 1.1G The ...
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