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Author Topic: Neumann U77 supply voltage for FET  (Read 344 times)

RuudNL

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Neumann U77 supply voltage for FET
« on: May 20, 2018, 07:11:51 am »

I would like to know (just to check) what the supply voltage for the FET stage in a Neumann U77 should be.
More specific: the voltage over C109.
This voltage is generated by the DC/DC converter.
Any thoughts?
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uwe ret

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Re: Neumann U77 supply voltage for FET
« Reply #1 on: May 21, 2018, 03:12:35 pm »

Expect around 13 to 15 V across C109.
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