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  1. BlueCrab

    A&T K6 Power Amplifier - homebuilt

    So almost 2 years ago I was scouting around for something to build - something really different other than a restoration. I began looking into a bunch of old electronics magazines (found here: World Radio History) and eventually came upon this: K6 Amplifier. What intrigued me about this was...
  2. BlueCrab

    PL4000 Distortion chasing

    I acquired an HP 8903B Audio Analyzer a year or two ago, but hadn't really used it. Initially I used it to check a Dynaco PAT4 I bought cheaply off EBay. This PAT4 has a nasty scar and bend in its faceplate. I bought it with the thought of using it to do some experimentation, but that's a...
  3. BlueCrab

    700B Parted Out

    I watched these items on EBay realizing the guy was parting out a 700B hoping to get more than if he had sold it as one lump. I think he'd made more if he had kept it together and sold it that way. $328.54 minus whatever Ebay takes doesn't seem worth it.
  4. BlueCrab

    BMR Speaker Kit

    Here is a photo of some speakers I've been building from a kit - the Philharmonic Audio BMR speaker. You can find the kit here - https://meniscusaudio.com/product/philharmonic-audio-bmr-speaker-kit/ And a review here: https://www.audioholics.com/bookshelf-speaker-reviews/bmr-philharmonitor-1...
  5. BlueCrab

    Toroid Power Transformers

    Has anyone considered or tried to use one of these for the power transformer in a PL400 or 700? Other than physical constraints, what would be the electrical issues? Considerations for magnetic shielding?
  6. BlueCrab

    Adjust DCP timing?

    So I sent this directly to Don, but decided to make it a thread instead. I want to adjust the timing of the DCP. Currently the relay energizes in about 3 seconds (as designed). My PL4000 preamp does not output a signal for about 15 seconds, and then when it does, goes through a short 1-2 second...
  7. BlueCrab

    Volumio - Digital music server

    Check out the Volumio here: https://volumio.org/volumio-overview/ I put one of these together with a Raspberry PI a couple of years ago after I had ripped my CDs to a NAD. It works really well. We often use it when we have the kids or friends over and I can hand them my iPad and let them...
  8. BlueCrab

    Technics M85 - worth restoring?

    I bought this in 1979 when I was living in Amsterdam. I haven't used it for years, but it has been well cared for. I'm thinking it might be a good project. What is the consensus?
  9. BlueCrab

    WOPL update for PL400

    I'm beginning a WOPL update for this old PL400 (and before I get it in the ear from WOPL Sniffer about why I didn't do it for a PL700, it's because I choose to ;-) ). This one is just starting to suffer from corrosion on all the hardware and the transformer, so first step is to tear it apart...
  10. BlueCrab

    Phase Linear 400 Meter needed

    I'm in need of a VU meter for my PL400 series 1 - 4 fin version. Lights are on the bottom. I'm willing to pay a reasonable price including shipment. Let me know if you have one you're willing to part with. Thanks!
  11. BlueCrab

    Phase Linear 4000 Restoration

    I recently purchased this actual PL 4000 and am trying to restore it. The unit has a PL30 in place of the PL03 Tone Amp board and no Decoder board PL06 as shown in the photo, the white wires running from the PL30 to the socket of the PL06. Does anyone have information on this modification? This...
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