Valve rectification question – diyAudio

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Valve rectification question






Gents,

I am trying to understand more about my 211 amp, and it has two 5u4GB rectifiers, and on the main transformer only 0 450v apparently no centre tap. ……I think…

Could it be a voltage doubler circuit maybe?

Is there a good way to see how the circuit works without a strip down, as a lot is out of sight.

Can I learn anything by taking some measurements from the 5u4 valve base etc.

211 is at ~1000v, so yeah I know it’s dangerous poking around!

Just trying to learn things, no real reason other than initially trying to understand if my driver valves are diode or valve rectified.

Thanks,
















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