• 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.

crown tube poweramp

So much for a couple of transformers. On eBay you usually can find nice working amps for about the half of that price, and often you find inside them that Telefunken 12AX7 or that RCA 6L6...

Good work!

What are the OTs for? Push pull? So you're looking for an EL34 PP in triode mode I suggest... Or take a look to the trannies impedance: maybe you can change the type of output tube... maybe some DHT??


2005-01-01 3:33 pm
The OPTs in this thing were used with EL37 i push pull, prolly 6.6k for 26.5 watts or 5.6k for 55 watts, which one i dunno. Actually i was thinking of it as a base for a diy power amplifier. Also i have two OPTs on the way, hammonds 4.3k if i remember right.