Re: Powering up a 577 for the first time

Kevin Oconnor

The 577 used one of the Tek custom potted SMPS transformers if my memory is correct. Next to a tube failure, that is your biggest worry.
I agree with others.
Clean, repair power cord, fuse, power, debug any failure.
There are quite a few threads here on fixing a577.
Keep us up to date.

Sent from kjo iPhone

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