• 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.

Heretical Unity Gain line stage PLUS a little gain ?

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It's very, very easy. Use a step-up transformer. A JT-11P-4 will give you about 3dB. The nice thing about the circuit setup is that you can optimize the load for nearly any transformer, so if you want more gain, just use a higher step-up. I did a quick trial with a Magnequest/Peerless 15095 and it worked very well, albeit with too much gain for me to reasonably use.
 
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