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Voltage mod for Stax SRM-3


Senes

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Actually the SRM-3 has a vertical raiser PSU PCB with the transformer directly soldered. You need to desolder the grey wire from the 100 or 117v position (comes from the switch or fuse) and that goes to the 230v pad and then solder the centre windings from 0 to 120v for dual primary 240v AC input.

I wouldn't be surprised if you have a completely different transformer in the amp though.

Edited by DefQon
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