Good Day All,
A good Ham radio friend of mine recently blessed me with a donation of three
Heintz & Kaufmann 304H triodes (a near-carbon copy of the Eimac 304TH,
according to Lud Sibley)...
Has anyone ever had any significant experience working with these
old-timers...? I've seen a circuit in Orr's handbooks, where a pair of them
were pressed into service as the p-p class-B final audio amplifier stage of a
legal limit AM modulator---but only one single example in its use as a
single-ended RF linear amplifier, in a 1954 CQ book on SSB techniques...
I think it has distinct possibilities for a low-band kilowatt-plus design---can
anyone share their experiences in this regard with me...?
Thanks in advance, & my vy
~73!~ Eddy VE3CUI - VE3XZ
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