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phase linear 3000

  1. david winter

    Phase Linear Model 3000 Series II - early version needs help

    Hi, I'm trying to fix this preamp which appears to be an early version. So far I had one defect 4013 chip and several relays with open coil (I replaced all of them with yellow HB2E-DC24V). After powering it up, I found that the LEDs of 2>1 Tape Copy and Low Filter always dimmed (or turned on...
  2. jeffsplat88

    Phase Linear 3000 Series Two - Technical Questions

    Hello AK I have a PLS2 3000 pre-amp. I like the looks and the sound. Good phono section. I have noticed that when I power it off, the LED's stay lit dimly, and you can still hear the relays click when you switch inputs and such. When I look at the schematic, I see a 3.3K ohm resistor across...
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