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Hey guys - Been a while. Still enjoying the heck out of my WOPL'ed 700b... so much so that I wanted 2, lol. In any event, following the bring up routine for my new, full WOPL build, as follows: 1. Populated bottom row of transistors, floated star ground, bringup slowly on Variac w/ dim bulb...

Hi Guys - So, hot off the FedEx truck, got my driver transistors installed. All the others pieces were already in place... WA speaker protection, all new outputs, control board, new filter caps (had to relocate 'em to clear the meters). Biased to 0.35 vDC, singing away. Impressive as all hell...

Hi Guys - Been a while; circling back to another (early 4-fin version) PL-400 that came my way. Long story short is I'm building it quasi-comp, w/ a new White Oak control board, filter caps, all new outputs from Joe (ON MJ21196G‎). It came to me with the blue LED board installed already. And of...

Hey there guys - Enjoying the heck out of my recently completed PL-400; it's now time for the 700b. Pics attached, full WOPL build planned. As always, any comments/recommendations welcome as I want this to be bullet-proof (or as close as possible ;-) for driving my Ohm F's. Looks to be all...

Hey guys... Thanks for the warm welcome last week... I also learned a lot about hair conditioner, lol. In any event, wrapping up a Sansui restoration, but need to wait for a few parts. Moving into my first PL-400 restoration as I've got a 700b waiting patiently in line for the full WOPL build...

Damn. That HAD to be my first word. I'll explain in a minute. New member from the Raleigh, NC area here. I've heard about the sense of humor you guys have, so I'll try to my chin up as I learn some WOPL magic. Long story short is I've been intrigued by these amps ever since buying a few...