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Feel free to call me with any questions.
I've only been licensed a couple of years ,still a newbie to all this .
But I have learned a lot from others.
253-273-4883 Dennis
I've been very busy with work and it's been several years since I've unpacked my PL equipment since purchasing a house. Just purchased another PL-300 II to add to the collection. Need to go back into the PL 400 II to see why it's squealing, did an upgrade on main caps and after move it just sat there. An anyrate, will p ost pictures of PL equipment as I get it unpacked and setup. CHEERS!
You got lucky with the open 2.7k resistors. When they fail the amp usually dumps DC into the speakers. Also the feedback cap and several of the display caps are failure prone.

I've got a drop in relay board to protect speakers against amplifier failure. It bolts on to the binding post so no drilling required. You can see more details on EBAY. Don't buy it there. I have to add in the various EBAY fees.
referencing the failed 700B power switch, I've got a stash of the Arrow Hart if you need one. Also you could drop in the triac board I've got. You tested it a couple years ago.
A good friend he did some mod to a Rega by using a Well Tempered Turntable Motor was gonna do the same but i sold the motor and platter on the bay... if you can find Brian Clark tube article please read it this guy was brilliant he did some work for Tube God also design stuff for Andy Fuch (GSI Audio) he did a Dynaco PAS mod in Audio Amateur.
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