• 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.

4 x PSE EL34

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All of Andrea Ciuffoli's designs I have seen on the internet are not going to be inexpensive to build, they either use Lundahl and or custom transformers. Now if you can get iron from another source say Edcor, you may be able to build for far less but your gonna have to send them the info on the iron and see what they say.
 
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