Recent content by Hexis22

Obviously not loud enough if the meter switch is at -20dB

Unfortunately the housing was not sent as part of this upgrade. Maybe check with @Gibsonian if he still has the original chassis.

Someone should jump on this for a full WO upgrade. https://www.ebay.com/itm/116144678963?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=uMW5T2FqTG2&sssrc=4429486&ssuid=VbGzxrohS-6&var=&widget_ver=artemis&media=COPY

Take a wet cloth and run over the surface of the meter lens to eliminate static. The meter should return to normal resting location.

Sorry, correct - a pair of Model One to adequately drive those SuperTowers full range.

Not until he has a Model One...

See explanation below previously posted by Joe (probably should be a sticky in WOPL tips). https://forums.phxaudiotape.com/threads/phase-linear-400-bias-advice.11277/post-347490 What is the difference between Quasi Complementary and Full Complementary? With fully comp circuit topology, the...

I’m itching to build a Model One as well.

It’s a shame wild Bob lost out to the bean counters. I feel fortunate that his company made as many as they did for us to upgrade and work on 30-40 years later. I’ll keep building as long as people have an interest… Assuming Joe continues supplying quality parts.

All wiring and initial functional testing completed.

Before completing the face plate assembly, I had to polish scratches out of one meter cover. Lite application of toothpaste followed by Plexus cleaner\polish resulted in desired results. Before: After:

Final assembly: A little RG316 coax goodness...

Agree, it appears someone tried to update this amp and gave up. All fuses were blown and multiple output drivers were missing. Several remaining output drivers were also shorted.

Yeah, I hate to see this kind of work. It gives a bad rap to people that actually know how to correctly work on this equipment.

Updated configuration for AC and DC rail fuse wiring. The intent was to keep AC Line and Neutral (Black & White) as close together as possible and separated from DC rail wiring (Green & Blue). Also added service loops on all fuse holders to limit stress on solder joints when inserting fuses.