[AMPS] Misc. Oscillations

[w8ik@arrl.net (Joe Subich, W8IK)]

> From: measures [mailto:2@vc.net]
> >
> Adjusting filament-v is simpler than tuning a tank.  

It may be more simple than tuning a tank except that one does not 
need to open the cover to tune a tank.  One must open the cover to 
measure filament voltage properly (directly at the filament pins). 

> Several models of Henry Radio amplifiers use approx. 6v on 
> 3-500Z/8008 (4.8v) filaments.  

It is lousy design but that's not the issue. 



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