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  1. P

    Restoring and Cleaning Amplifier Internals

    I've come across a Pioneer SA-510 that was kept in the garage as an amplifier. It started "acting weird" so it was given to me. I respect the vintage tech, and want to bring this thing back to life for normal use in a cared for environment. It's got 2 problems. It is oxidized inside. Rusted on...
    • pkalder
    • Thread
    • alcohol amp amplifier board circuit boards cleaning oxidation pcb restore vintage
    • Replies: 33
    • Forum: DIY
  2. jozeppy26

    Woofer Surround Cleaning

    This is a closeup picture of one of my HPM-100's woofer surround. This is the rubber part that attaches the cloth surround to the aluminum cast frame. As you can see, there is this white patchy substance (only on one woofer) that does not wipe off easily. Any suggestions how I might remove...
    • jozeppy26
    • Thread
    • acetone alcohol clean cleaning hpm pioneer rubber speaker surrounds woofer
    • Replies: 10
    • Forum: Speakers
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