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potentiometer

  1. P

    Vintage Denon amp output on 0 volume?

    Alright so apologies if this is not the correct place to post this as I'm yet to get my head around this site... I got my hands on a Denon PMA-320 integrated amp (circa 1989) today and have spent a couple of hours troubleshooting an unusual output issue: when the volume is at 0 there is still...
  2. 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
  3. Z

    AR 2ax mismatched siblings

    Recently acquired this AR 2ax odd couple, which appear to be two different versions. This is my first experience with AR speakers, am new to vintage speaker repairs, and both the speakers have definitely seen better days. But I'm determined to restore them to the best of my ability. I'll post...
    • ZedZeroZilch
    • Thread
    • acoustic research 2ax potentiometer speaker advice
    • Replies: 4
    • Forum: Speakers
  4. scootsity5

    Am I crazy for thinking 16 steps is enough steps?

    I found a 4 gang, 16 position rotary grayhill switch with fancy gold plated contacts in my parts bin. It's been in there forever for the 'right project'. I'm currently working on a pre and have been debating building a stepped attenuator. Am I crazy to think 16 positions is enough? Has anyone...
    • scootsity5
    • Thread
    • potentiometer stepped attenuator
    • Replies: 10
    • Forum: DIY
  5. D

    Volume Pot Issues: Sansui 5050

    Good evening. New here; picking up stereo repair as a hobby in my (semi) retirement. Have had some success fixing eBay finds, etc. One of our friends passed away and his widow gave me his Sansui 5050 that he bought new as a younger man. It's in beautiful condition. The right channel...
  6. N

    Difficult to find pot

    I've found a bad pot in an amp I'm repairing for someone. See attached files. Note the extra soldered PCB bracket for support. Also note I must have the switch. 80k to 100k. Don't really care about taper. Can anyone help find this pot? Thanks Al
  7. jmsdvdp@aol.

    Potentiometer or fader?

    I have a Pioneer SX-680 and have been trying to find out exactly what the control switches are classified as. There are push buttons for the Power, A/B speakers, Mode/FM Mute, Tape Monitor 1 & 2 and Loudness. They are all a simple push in or push out. There are rotary Pots for Bass, Treble...
  8. D

    Need help with fixing Technics SU-8099K

    After forced impact volume control pot became damaged. It cannot be fixed only replaced as my serviceman said. I couldn't find original one. Can anyone recommend similar for replacement that I can buy from ebay or other internet resources?
    • Discofan
    • Thread
    • potentiometer technics volume control
    • Replies: 0
    • Forum: Solid State
  9. L

    Realistic Lab 400 pot wiring

    I picked up a Lab 400 this summer for 10$. When I got the speed was inconsistent and would spin sometimes or not at all. I cleaned the pots and it seemed to get better. I decided to clean the speed adjusters on the motor. I think I got carried away and after that it wouldn’t work at all or if...
    • locodrvr
    • Thread
    • potentiometer realistic lab 400 wiring help
    • Replies: 0
    • Forum: Turntables
  10. Wolfwood

    Vintage Jensen coaxial question. What the heck is this thingy?

    I've had a pair of Jensen Coaxials (model h223f) for a decade now. They've mostly just sat around, not making much of a fuss. Minding their own business. These speakers sound quite good for their age and technology. The woofer is Jensen's 12" FLEXAIR woofer. Apparently these "flexair"...
    • Wolfwood
    • Thread
    • capacitor crossover gear messin around potentiometer tube
    • Replies: 3
    • Forum: DIY
  11. Yamaha5000

    Yamaha CA-1000 Front Panel Potentiometers replacements?

    I am looking for information on possible substitutes for the Bass, Treble, Loudness potentiometers. The Bass & Treble appear to be logarithmic with a center detent. Correct? They are also Dual Shaft which is a lost Art, with no possible new replacements. Correct? The Loudness appears to be a...
    • Yamaha5000
    • Thread
    • potentiometer yamaha yamaha ca-1000
    • Replies: 10
    • Forum: Yamaha
  12. Yamaha5000

    Most expensive trim pots available

    I recall a post a few years ago about a high-end trim pot, but don't recall the manufacturer. Anyone have more information?
    • Yamaha5000
    • Thread
    • ca1000 potentiometer yamaha
    • Replies: 39
    • Forum: Yamaha
  13. Ben Rothman

    Potentiometer Rebuilder?

    Hi, I need to have my volume potentiometer for my SX-1010 rebuilt. I have gone down the faderlube route already, but this pot really needs to be disassembled and rebuilt. I was wondering if there is a shop or someone I can send the potentiometer to have it rebuilt? Any help would be greatly...
  14. 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...
  15. M

    Substitute tone pots

    I’m trying to find a new, currently-produced replacement for the tone pots on a 2225 PE-01 tone board. I suspect they’re the same pots used on multiple receiver models. 2-gang 100K linear pots with 11 detent positions. After much searching, I’ve found no drop-in replacement, and no...
    • Matt Giarra
    • Thread
    • alpha bourns knob marantz potentiometer pots tone amplifier
    • Replies: 6
    • Forum: Marantz Audio
  16. P

    KENWOOD KX-1003 (KX-1030) - Need a resistor

    Hello, I own a Kenwood KX-1003 (same like a KENWOOD KX-1030 but with a gunmetal plate) and I'm looking for a resistor. Got the tape deck but sadly the BIAS/ADJUST-control is broken. I removed everything and saw that the resistor spindle is damaged. So I need a new resistor and I'm looking for...
    • Peter K0801
    • Thread
    • kenwood kx-1003 kx-1030 potentiometer potentiometer repair resistor tape deck
    • Replies: 8
    • Forum: Tape
  17. J

    Magnavox Astrosonic volume(loudness) pot replacement

    Hello, I am trying to source a replacement for the LOUDNESS control on a Astrosonic console. It is a R201-03-00 chassis I believe. The pot in question is supposed to be 100k, but it has places for 10k and 50k taps. Anybody have these?
    • j M
    • Thread
    • astro sonic magnavox potentiometer
    • Replies: 5
    • Forum: Solid State
  18. T

    Lenco l450 speed pot does nothing.

    I have been working on a l450 all day now and had to basically rebuild it fromt he ground up. I almost have it working now but the big speed pot does not work. I have already tried replacing it but no dice. Any clue why this could be? 1 thing to note is that one of the pads of the smaller 2...
  19. Nathan44

    [Help needed] One amplifier channel not working properly

    Hi there! I got an old turntable setup from my dad and I'm trying to get it working again. One of the problems is with the amplifier. Namely the sound from the left channel does either not work or is having trouble creating sound. I already scowered through some forums trying to find a solution...
    • Nathan44
    • Thread
    • amplifier distorted channel not working old amp potentiometer relais
    • Replies: 8
    • Forum: DIY
  20. A

    Volume pot for Trio KA2000

    Hey everyone. Newbie Andy here - have already posted in the wrong place, and managed to get an illicit ebay link in too, apologies... Anyway, hey to you all and thanks for having me :-) I'm attempting to restore my parents' old Trio KA2000. The 50k ohm dual volume pot requires replacing first...
  21. 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...
  22. Beavs

    Help finding potentiometer replacement

    I have a Denon PMA-850 that has a bad balance potentiometer. It's a dual gang 100 kOhm potentiometer. I had sketched up the attached for my own reference in trying to find a replacement (so kind of sloppy but made sense to me). This is a 6mm smooth shaft for a set screw. Also has a center...
  23. C

    Sansui AU-717 Deoxit F5 all potentiometers?

    I got my AU-717 rebuilt but I am experiencing left channel drop out. Adjusting the balance control, or even applying a little pull pressure returns the signal until the knob is adjusted again. Going to apply Deoxit F5 to that potentiometer but wondering since I know the amp has sat unused for...
  24. George Hart

    Looking for 10Hz treble pot Pioneer sx1050

    Hi, I am looking for the 10 Hz treble pot for the Pioneer SX 1050...any help would be much appreciated. The 20 Hz pot is available on EBay but I can’t find the 10 Hz one.
  25. windsorlad

    Acoustic Research AR4x Potentiometer bypass.

    I inherited a pair of AR4x speakers a few years ago. They are cosmetically in great shape, all original but they sounded like dogs. Something needed to be done. tmad40blue's thread explains the situation far better than I can. Go here first. Today I decided to bypass the potentiometer...
    • windsorlad
    • Thread
    • acoustic ar4x bypass potentiometer repair research
    • Replies: 15
    • Forum: Speakers
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