• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Screen current

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croccodillo

croccodillo

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Joined 2005
nanito.org
#1
Hi,

I want to use a KT88 in pentode connection, for a CCS stage (this).
The working parameters are:

CCS current: 100mA
Plate voltage: 300V (it will swing from 100V to 500V).

How can I calculate the screen current? I mean, I need to calculate the necessary power supply for the screen voltage; at the moment the PS is a separate one, too expensive.

Ciao,
Giovanni
 
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