Thanks for the input, Wayne! It sounds like a good project to get the receiver working again using only a soldering iron and DVM, although i'll probably contact local electronics shops to get an estimate. Too bad Larry is all the way in CT as I live in WA, although if I can't do the repair or find anyone locally who can do it I'll probably bite the bullet and ship the 30lb receiver across the country to him. I was wondering if you think the 25 year-old HK-450 might be worth fixing at all, before I invest much time or money?