• 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.

turn an OPamp design into a tube one

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Osvaldo de Banfield

Osvaldo de Banfield

Member
Joined 2011
geezertron said:
6BN11 dual sharp cutoff pentode compactron is pretty easy to find on E-Bay and cheap.

You mentioned the 11AR11 below. This is a pair of remote cutoff pentodes, not sure if this would be OK for audio work.
Click to expand...

Yes, I know this, but was the only easily available. Ebay? Don't make me laugh! I'm in Argentina, man‼ The most closed country of the world‼
 
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