• 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.

have a pair of 5k:8 OPTs lying around.. suggest me something to build?


2009-10-28 12:37 pm

RH84 is good for doing a decent sounding amp with small OPTs.


red with envy!

Just lying around?? I can't even get hold of toroidal trannies here.



yup..lying around
forgot which amplifier i salvaged them from a long time ago
so was just wondering if there could be anything i could be making out of it

i think their last application was with a 2A3
oops sorry for omitting the details,

single ended, 60-65ma is rated

it sounds quite limited as to what this can be used for.. no? :(

Obviously you'll need to buy some GU50 tubes and sockets.
2 if you want a traditional SE, 4 if you want to get funky and make an SRPP/SEPP parafeed on. Yves has a good circuit you could base it on!

Those OPTs are not limited at all, you luck, lucky man!