• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

pl400

  1. Dan Bower

    Phase Linear PL 400 with LDX Technologies UPGRADE KIT Installed (by Lou Dorren)

    Hey Flamers, say, working on a PL400 for a friend, it has this LDX transistor kit installed by Lou Dorren (LDX Technologies). Apparently, a kit available to "upgrade" this unit. Here is my question, I have RATFW'd the installation instructions, and nowhere does it mention pulling out the DC...
    • Dan Bower
    • Thread
    • 2n1304 2n1305 ldx technologies lou dorren phase linear pl400
    • Replies: 2
    • Forum: Solid State
  2. punchback

    My New Early Model Phase Linear 400 w/ 4 Fin Heat Sink

    I’m the proud owner of a new “old” PL400. It seems that it is an early model with a 4 fin heat sink configuration. It also has fuse type lamp to illuminate the meters from the top. This meter illumination apparently prevent me from using the White Oak Audio LED upgrade. Let me know if there...
  3. A

    Phase Linear 400 - DC offset problem

    I've recently replaced the output transistors on one channel of a PL400 I'm working on but I now have a big DC offset. When I got the PL400, it arrived with no main fuse. On DBT (with fuse) it drew too much current. Measurements indicated that three of the connected outputs on one channel were...
    • audiogymp
    • Thread
    • dc offset phase linear 400 pl400 problem
    • Replies: 139
    • Forum: Solid State
  4. A

    Phase Linear 400 output substitute

    Hi I recently bought a PL400 needing attention. One channel has original drivers and outputs (RCA 410 and XPL909). The other channel has some different components - Drivers are SJ2741 and the outputs are a mix of four PL909 and two MJ15024 - not good. Arrived with no main fuse. On DBT (with...
    • audiogymp
    • Thread
    • output transistor phase linear 400 pl400 substitute
    • Replies: 17
    • Forum: Solid State
Back
Top Bottom