[Amps] The 304H

[n8de at thepoint.net]

In my estimation, it's not worth the effort, as those OLD tubes are  
probably quite 'gassy' from sitting around for so long.
Good luck!
Don
N8DE

Quoting Edward Swynar <gswynar at durham.net>:

> 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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