My WOPL 700 Containment Thread

mr_rye89

Veteran and General Yakker
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Aug 12, 2015
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Land of Entrapment
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Lost in the Ozone Again
#1
Alright it's time! Tear this bitch down and analyze.
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Mmm ugly...
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Quality Restoration! And yes those input RCAs touch the chassis
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mr_rye89

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#13
Watts Abundant goodies got here. Thanks again Don. And if anyone wants those nasty old driver/output transistors/pl20 board/sockets hit me up. The pl20 is missing transistors tho.
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wattsabundant

Chief Journeyman
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Apr 26, 2011
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Central Ohio
#17
Ugh! The photos show the output binding posts were replaced with gold plated versions. That's OK, but the chassis had to be drilled to accommodate them. The studs on the new posts are larger than the standoffs (4-40) supplied for mounting the board to the OEM Switchcraft binding posts. An option would be to drill and tap one end of the standoffs to the same size as the new binding post studs.

Post number 13 shows the relay board and hardware. On the left side is the AC power triac board designed specifically for the 700's. The early 700B's used an undersized Arrow Hart power switch. They were failure prone and today are nearly impossible to find. The triac board becomes the main power switch. The existing power switch controls the triac. The board mounts against the chassis and uses the existing screw that supports the driver board.
 

Gepetto

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#19
I bought a new chassis because the original one is junk. Everything should fit I think. Last one I did was a 4 fin PL400 and I did have to drill some extra holes.....
Since you purchased the new chassis, you can revert to the original binding posts that were installed.
 
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