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capacitor checking

  1. S

    AU-9900 Stuck In Protect

    Continuing on from my thread about channels dropping out, I have started to recap as I was getting LOUD pops and clicks and it was then going into protection. As I was told it is resistors that cause this, I decided to start work with what I have on hand (still waiting for some backordered...
  2. G

    CR-620 Buzz/hum

    I just bought for $70 a cosmetically pristine CR-620. All functions work, but there a loud buzz or hum for about the first two minutes after it powers on, after which the buzz fades away. The only thing on the front panel (other than volume) that affects the amplitude of the buzz is turning the...
    • Gary_James
    • Thread
    • buzzing capacitor checking hum noise yamaha cr-620
    • Replies: 6
    • Forum: Yamaha
  3. PS_1967

    Kenwood KL 3080

    I just got back into vinyl. I picked up a set of KL-3080 for $30.00. I brought them home and hooked them up to my Yamaha CT-610. I love the sound of them. The only problem I have is they sound "muffled".. I can't get much high end out of them. Is there any truth to changing the caps...
    • PS_1967
    • Thread
    • capacitor checking kenwood kl-3080
    • Replies: 3
    • Forum: Speakers
  4. grhinson

    Weston Model 976 Multimeter Manual

    This is probably a longshot, but I am looking for a copy of the instruction manual for the Weston Model 976 Multimeter. I have looked at many of the test equipment / military shops online that sell and those that freely provide manuals and schematics, but to my surprise, no one seems to have a...
    • grhinson
    • Thread
    • capacitor checking multimeter test equipment vtvm weston
    • Replies: 6
    • Forum: DIY
  5. dads truck

    Capacitor Identification / cap quality / sound / CV T15

    So, I've got a thread on here restoring a set of CV Cerwin Vega circa 1975 T15 s. Have (I think) isolated a capacitor as having blown; really avoiding any and all soldering "sittings"; ideally would like to know what the capacitor I think is fritzed is (its the big silver one on the board...
    • dads truck
    • Thread
    • capacitor capacitor checking cerwin vega crossover rebuild crossover recap crossover testing repair restoration t-15 t15
    • Replies: 1
    • Forum: DIY
  6. mrjoe

    Have these caps seen better days? – Technics SE-900s

    Hi all, I'm in process of bringing back to life this power amp legend. Power supply is working well but no sound output. Looking over the board the two main huge capacitors have some purple / red colouring around their bases. See image, are they leaking? There is no bulging or damage to...
    • mrjoe
    • Thread
    • capacitor capacitor checking
    • Replies: 9
    • Forum: Solid State
  7. Drugolf

    Capacitor measurement instrument suggestions

    Since I am spending most of my time restoring speakers I would really like to get a good instrument for measuring the 3 key aspects of cpas. Capacitance, leakage and ESR. Of course many techs have the various Sencor meters that do this but as I research those they can be costly when you add ESR...
    • Drugolf
    • Thread
    • capacitor checking sencor
    • Replies: 14
    • Forum: Speakers
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