Thaught Id post this as a finished project as it is buried in some one elses thread to asist them. It was in AC Sensing-Generator control & starts on page 4. It was a 1kv GMC / Homelite generator which stoped working as the AVR was faulty. I dissasembled it drew out the circuit & rebuilt it, very cheep to rebuild. This is a very common AVR & used in generators up to 5KV using a stronger Mosfet in the OP stage.
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