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transformer

  1. J

    1959 Gibsonette Audio transformer impedance matching

    Hey everyone, Im working on a 1959 gibsonette and I have tested the audio output transformer which matches the exact ratio as listed in the technical literature which is 27.5:1 The finals for this AMP are dual 6V6 running parallel single ended into the transformer in class A The speaker...
    • JRUBIN
    • Thread
    • 6v6 gibson gibsonette plate resistance transformer
    • Replies: 1
    • Forum: Tube Audio
  2. 7

    Yamaha ct 610

    Hello, I have a ct610 with a bad power transformer. I haven't been able to locate a service manual to find out what the secondary voltage is so I can find a replacement. Has anybody here ever repla ed one? Thanks!
  3. RonaldArjune

    Adjusting tuner of Pioneer SX 880

    I have a Pioneer SX 880 receiver. I need to know which RF Transformer to adjust so that the FM Center tuning meter is at dead center with maximum signal. I don't think I want to adjust the trimmer capacitors on the tuning capacitor. The center tuning meter is a little off to the left with...
  4. sunnygirl

    What is this?!

    when it comes to electronics, i know just enough to connect my gear 8) i picked this up with some other goodies and i am guessing it could be a step transformer? it is a heavy little bugger, weighing in at around 8 pounds. the switch says CAMBIO / TENSIONE and it has multiple settings marked...
  5. QSilver

    Big DC Power supply. What does this do?

    I have z bug old dc power supply from the 60s. It was originally used for running solid state systems in electro-pneumatic pipe organs and it seems quite beefy. 25A @ 15/13/12v I plan on changing the capacitor bank to make sure it keeps performing well. Though there are a few parts in here...
    • QSilver
    • Thread
    • kimber allen power rectifier supply transformer
    • Replies: 33
    • Forum: DIY
  6. georgerm

    Mitsubishi DA-A15DC Transformer giving me fits...

    Hello all, I've got a pair of Mitsubishi da-a15dc power amps that have been sitting for years. Initially I was able to power both of them up, but each one displayed some type of problem. I took on the task of opening them up, inspecting and re-capping. During that process I found several issues...
    • georgerm
    • Thread
    • da-a15dc help! mitsubishi transformer troubleshooting
    • Replies: 6
    • Forum: DIY
  7. QSilver

    Pioneer A-8 hot transformer and humming.

    I got one of these a few months ago but only just got into using it this week but I've noticed that the transformer does hum noticeably and gets quite hot. Even when idling. Is this anything to worry about? The hum is from the transformer itself rather than the amp.
    • QSilver
    • Thread
    • 50hz a-8 a-9 ac hum hot hum humming mains hum pioneer transformer
    • Replies: 93
    • Forum: Solid State
  8. L

    Marantz 6370Q Turntable Transformer - NEEDED

    I have a fried 6370Q transformer, does anyone have an extra for sale? If not, can a 6350Q work with it?
  9. Ben Thomas

    Can't find these components...

    So I've become sort of infatuated with old record consoles and portable record players and now have 5 project pieces; 2 Sears Silvertone portables and 3 consoles. I'm starting with what seems like the easiest (the smaller Silvertone) and would like to replace the 2 caps and transistor, but after...
    • Ben Thomas
    • Thread
    • capacitors portable restoration sears silvertone transformer turntable
    • Replies: 4
    • Forum: Tube Audio
  10. Salbreth1

    2500 from beyond the realms of death

    Hello guys, this next project might be a group effort... The short story is the shop i bought this from a guy who fired his tech after going insane trying to fix this. It's been collecting dust for about 5 years now. The good news is that all the important stuff is here, the scope and...
    • Salbreth1
    • Thread
    • marantz 2500 marantz 2500 restoration marantz 2600 marantz restoration most powerful receiver scope transformer
    • Replies: 216
    • Forum: Marantz Audio
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