• 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.

Combine EF80 with EL84

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Hi newbadboy

Singel end means you only have one valve driving one speaker.
One valve then have to go in klassA and make the voltageswing alone. Therefor it is extra important to get the workingpoint in center of its suiteable working range.
Atherwise you don´t have any pleasure listening to music with this amp.

But go ahead and build with your powertransformer, and then measure the voltage over the anodresistor and then anod-/katodpins on the socket and then over the katodresistor.
Then you have some information to compare with tubedatasheet, to see if you are in.;)
 
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