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MP573 Microphone preamplifier / Re: Where to check for faulty transormator?

« on: May 24, 2024, 10:36:11 PM »

Nice one, I'll check it out soon!
Thanks,
Bob

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MP573 Microphone preamplifier / Where to check for faulty transormator?

« on: May 20, 2024, 10:14:59 PM »

Hey,
my mp573 has been working great for several years but now stopped doing it's thing. The LED shows input, but I can't seem to get audio going out of the unit. Swapped both mp573s, swapped inputs and outputs on the patch, everything seems to point towards the output stage of the preamp.

Where and what should I measure to determine the root of the problem? I do kind of smell something burned, but I might be biased thinking so since it's not working. Maybe in a working state I'd totally ignore the slight odor.

Thanks!