Re: I want to build a stereo headset valve amplifier
well that resistor was the problem in my circuit. The amp started acting strangely with overheating the #2 valve (E34L). When I removed the output (with attenuator resistors) for the headphones and "tuned" the bias, the problem was gone.
And with this amp I'm throwing away the capacity of the amp for only powering a headphone and not only speakers. (40Watts powering only a headset, it's like swatting a mosquito with a cannon…)
So I've decided to use this amp for something else and build myself trough a home-made or kit amplifier that only powers a headphone.
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