• 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.

Searching for simple 12bh7/E80cc pre schematic

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Hello,
I want to try a simple pre w/ these tube types as I have samples of the best versions etc.. I have allways liked the sonics of eaither of these tubes in anything I have had & am in need for a simple pre. please no other suggestions for differant tube type as I have DHT pre's allready.
 
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