Phase Linear 200 rebuild
- Thread starter WOPL Sniffer
- Start date
I’m setting out to rebuild the 200b sitting on my self for 10 years. Many have stated the poor performance of the series one and b , the series two is compatible with a series ll 400 and 700 in basic design . My goal is a tweeter amp
well this one not a series ll so I’m gutting it and fitting a rev E board I have. This is just right size to fit in.
it’s going to be full complimentary with addition of extra output to drive the mj21195/96 pairs
gathering parts for December build. And one idea is the vu meters that I have. No idea what they came out of as they are 113 x82 mm just smaller that the 400 and 700b
should be strat forward build
thing that may need addressing are resistors in protection circuit and possibly power supply section
well this one not a series ll so I’m gutting it and fitting a rev E board I have. This is just right size to fit in.
it’s going to be full complimentary with addition of extra output to drive the mj21195/96 pairs
gathering parts for December build. And one idea is the vu meters that I have. No idea what they came out of as they are 113 x82 mm just smaller that the 400 and 700b
should be strat forward build
thing that may need addressing are resistors in protection circuit and possibly power supply section
This amp has delay on with speaker protection
the protection circuit is a little curious as the main power output to the board that I senses has different values from left to right channel R57 and R58 on b and r1 and r2 in series ll schematic attached
the other thing will be thermal bias control added via bias transistors added
the protection circuit is a little curious as the main power output to the board that I senses has different values from left to right channel R57 and R58 on b and r1 and r2 in series ll schematic attached
the other thing will be thermal bias control added via bias transistors added
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Anybody found any newer info on updating the PL200B and the PL200II? I'm heading to Chicago area to deliver some gear and pick up some gear for repairs. He's got 2 of the 200's (a series II and the 200B) and they need some TLC and I'm upgrading everything in both amps, caps, transistors, Outputs, speaker jacks (they need to be 5 way and not spring loaded junk), wiring and it will get a few other items. So if you see any good threads on replacement parts, let me know. I'm also picking up a Sansui 5330 cassette deck and a Tascam 122MK III both for services, belts, missing buttons/knobs. I'm gonna spend his money for sure. I think I have another piece or 2.
