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pot

  1. Mjaue

    Unknown potentiometer

    Hi, I am restoring an old Proton P1100 preamplifier. It has a lot of issues but I am slowly getting it back to working condition. There seems to be an issue with the potmeter controlling the base, so I removed it and tried to clean it. While it got better it's still not working as intended...
    • Mjaue
    • Thread
    • open center p1100 pot potentiometer proton
    • Replies: 12
    • Forum: DIY
  2. I

    The MAC 1900 Volume & Balance Pot Solution

    I had purchased a MAC 1900 that cosmetically was very nice, but internally was an absolute disaster. Took on this project and I hope that some of the work I did might help others. First off, I replaced some of the key transistors (orange/yellow dot, flying saucers, etc.) and changed all the...
    • IASTM
    • Thread
    • 1900m balance mac mcintosh pot volume
    • Replies: 9
    • Forum: McIntosh Audio
  3. nuyork77

    Sony TA-AV521 - Volume Potentiometer Question

    Hi all. I have an older Sony TA-AV521 with a noisy potentiometer. It is a sealed unit, but I soaked it in cleaner, as well as sprayed it several times. I ended up taking it completely apart because it would not give me any volume on one channel even after moving it back and forth etc. So, here...
    • nuyork77
    • Thread
    • 240m-100k15ax4 241-816-11 pot potentiomer receiver solid sony state ta-av521
    • Replies: 0
    • Forum: Solid State
  4. F

    Volume pot disassembly

    Anyone have any experience tearing apart a marantz 2238b or similar volume pot for a thorough cleaning? I can’t get a dead spot out of the pot by simply using deoxit through the opening. I have the pot removed from the board and the back metal cover removed on the pot. But it looks like the...
  5. G

    Contact Cleaner 'type' (on Tivoli radio)

    Hi all, I just bought an old but brand new Tivoli 'Model One' radio (platinum series - yay!). I suspect this thing is near 20 years old. Stations come in and play clearly, but... while I'm still dialing in a station, the audio output can be quite scratchy/noisy. The volume knob works...
    • GreenCDN
    • Thread
    • clean contact cleaner deoxit dial pot radio solvent tivoli tuner
    • Replies: 10
    • Forum: DIY
  6. AudioModern

    Volume pot cleaning guide for AU-717

    This week I was wrapping up an AU-717 overhaul and noticed the volume pot was noisy around the 9 o'clock region. My first attempt and fixing it was to turn off the amp and work the pot back and forth through the full range a couple dozen times. This didn't help so I knew I needed to do something...
  7. nəurø

    HPM-60 Crossover / Pot

    Hi, I created an account after searching extensively and not being able to find any info specific to my situation. I have a beautiful pair of Pioneer HPM-60's. I'm almost certain they're all original. They're rated for 60W/120W MAX and they have the cloth surrounds... maybe someone can chime...
    • nəurø
    • Thread
    • 60 cross crossover hpm over pioneer pot potentiometer
    • Replies: 1
    • Forum: Pioneer Audio
  8. I

    Removing Pots??? EV Aristocrat three way

    Please forgive this question as I've never had speakers with pots on them. In this case I have a matched set of EV Aristocrat III (i think). The brilliance and presence pots are...noisy. If you can get them tuned to a spot where they are not as noisy (crackles and fuzz), I notice that the mids...
  9. R

    Fix Gain Pot With Diamond PC Thermal Paste?

    Hi i recently bought a preamp from a pawn shop. It works and everything the only thing is that the gain knob had to be pushed sideways to allow signal through i wasn't sure if it was broken. I didn't think so since i could get audio by maneuvering the knob. So i decided to clean it with contact...
    • Rasengan505
    • Thread
    • diy fix gain pot potentiometer preamp
    • Replies: 2
    • Forum: DIY
  10. H

    Adjust MC2255 channel gain question

    Hi, I have been fine-tuning my very nice mc2255 amp. I have found that the gain on one channel is slightly higher (6%) than the other channel with both gain knobs set to max. I have cleaned both pots, but no change. I was thinking of adding a small resistor in series to the louder channel, but...
  11. ssouci

    HF-81: How to remove power switch?

    is it possible to completely remove power switch mounted on the back of the treble pot assembly on an Eico HF-81? how do I do it please?... do I have to remove (and unsolder) the assembly first to gain access to it, or can I do it with the pot assembly in place? the reason I'm asking is that...
    • ssouci
    • Thread
    • eico hf-81 pot potentiometer power switch treble
    • Replies: 6
    • Forum: Eico Place
  12. Salbreth1

    Marantz 1200 volume issue

    Hey guys, So I just finished a 1200b and noticed that I still have audio out of both channels when the volume is at zero. At first i figured a bad pot but out of curiosity I plugged in a 1200 I'm getting ready to start and it has the same problem. Even when the gain switch is on low I have audio...
  13. A

    sa 5270 technics Volume pot iffy

    Howdy, I have a SA-5270 Technics that has a iffy volume pot *Or so I think* The Volume knob works and does the job of turning up the volume but it sounds like it doesn't send juice to the left speaker channel. If I push on the knob real hard it has full volume with both speakers. Once I...
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