Tony's latest traffo DIY build

[Kay Pirinha]

If there's really a rectifier, I'd short it's diodes by applying wire bridges appropriately.
Best regards!

[daniboun]

If there's really a rectifier, I'd short it's diodes by applying wire bridges appropriately.
Best regards!

Thanks but my question is more general : I don't want to modifiy the module, so what is the risk to apply a 30-0-30 VDC to a 20-0-20 AVC on that module with an integrated rectifier ?
Just want to know if it is going to work ? )

[TonyTecson]

the A3 required +-25 split rails....

two 25volt smps stacked in series, that is what i will use...

[daniboun]

the A3 required +-25 split rails....

As per spec below, recommended Toroidal PSU is 20-0-20 VAC x 2
So thought that 28 VDC SMPS 500W (dual rail) should be OK.

20V AC x 1.4 = 28 V DC


ZEROZONE assembleld Ver 2.0 passe A3 classe A Mono amplificateur carte 30W Amp bricolage (pas de dissipateur thermique) | AliExpress

[TonyTecson]

your amp shows too many filter caps, so then i doubt that smps is what you need..

looks like toroid traffo is all you need.....

[daniboun]

your amp shows too many filter caps, so then i doubt that smps is what you need..

I know that amigo ) But my question is not what I need but what I risk : In other words : Will the rectifier allow DC current to pass without causing damage to the module? I guess the diode bridge will set the polarity automatically from power inputs ?