• 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.

Need help finding schematic. Conn 720

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807tubenut

807tubenut

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Joined 2010
I got a amp out of a Conn 720 artist series today, appears to be 3 channels, with 2 of them using a push pull of 7027a's and the 3rd channel running a set of 7868's. Does any one know where I can find the schematic? I just verified the unit is in running order (more or less) by bringing it up on a variac, after 15 mins or so, all the tubes looked good, nothing was overheating or melting down!


Now I want to add some musical input, and see how she sounds.



Whats the "norm" for a set of 7027a's in PP? wattage wise.
 
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