Re: [Amps] Acceptable ripple on high voltage plate power supply in tetrode amplifiers.

[Ron W4BIN <ka4inm@gmail.com>]

On 12/25/24 5:12 AM, Lukasz wrote:

> But now the question becomes, how do I check how far from resonance am I
> (other than by measuring ripple)? I've obtained the capacitor they most
> likely used originally. And the choke is original too.
  If you can measure the two components and calculate the resonant 
frequency
and calculate the low pass filter response, I think you can reveal much.
The AC input power frequency times the phase factor (doubled or not) 
will result
in the ripple frequency which must be accounted for.
 - -
 Ron W4BIN

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