[Amps] Acceptable ripple on high voltage plate power supply intetrode amplifiers

[Lukasz]

On Sat, 21 Dec 2024, 01:52 John Lyles, <jtml at losalamos.com> wrote:

> According to Pappenfus, Bruene and Schoenike in their 1964 textbook "SSB
> Principles and Circuits" the ripple modulation on SSB is typically 15-20 dB
> lower than the % ripple on the plate DC power for a linear RF amplifier
> using tetrode.


Very interesting. I'll check this book out too.


Only during the peak power excursions where plate voltage gets close to
> screen voltage, and the tube deviates from constant current characteristics
> does ripple modulate the RF more directly. I am not sure how it translates
> to grounded grid triode operation.


This amplifier is grid driven.

73,
Łukasz - SP4IT




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