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potentiometer

  1. D

    Need a couple old Potentiometers

    Need some pots for some 1950’s C8/C8S Mac preamps. I realize exact replacements aren’t going to happen but I think I can make similar ones work. Need a: dual audio taper 50k or 100k short shaft with a switch and a dual audio taper 2” long1/4 or 3/16 dia shaft dual 150k or close, 50 100 etc. or...
  2. Krasch

    Pilot 602M Volume Pot

    I just powered up my Pilot 602M after recap. I checked and changed all resistors that were out of spec. One channel was weak. Found volume pot way off. Spec calls for 1 meg 300k tap. Mine is 622k and 633k on the other channel total. Control at 9:00, from wiper to audio input is 108k and the...
  3. James_Dean

    Accuphase E-212 ALPS potentiometer volume balance issue

    Hi all, it has been quite a while since I have posted on Audiokarma - hoping I would be able to tap into your collective Accuphase expertise. I've acquired a early 2000s Accuphase E-212 which sounds great, but was in a bit of a sorry state when I purchased it (quite dusty inside and out). I have...
  4. C

    I have a University 312 speaker that needs a new potentiometer...

    Hello...I have a University 312 3-way speaker that has a potentiometer attached but the housing for the potentiometer disintegrated from age (the plastic dried out), It has 3 wires attached, which appears to be a 3 position variable switch perhaps? Can this be replaced with any variable...
  5. 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...
  6. 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...
  7. Jamie Starr

    Potentiometer/Trimmer Ordering

    Hey Guys: I was wondering if anyone could offer advice or insight on ordering the correct physical size for pots and trimmers. I cannot tell you how many times I have ordered a pot or trimmer, only to find out that the terminals will not line up with the PC board I am working on. I have tried...
  8. Sergimm

    Hack job on a pot - Luxman L1

    I got a Luxman L1 for free that looks like it’s been in a barn for the last 40 years. Several issues, but the most outrageous one is that somebody replaced the volume pot at some point and did a terrible job (see photos). The volume knob wiggles, can’t really adjust the volume precisely...
  9. goldswimmerb

    Marantz 3800 Dolby Play Potentiometers

    Hey, so I am working on a 3800 where everything works, except the for one of the Dolby playback potentiometers, upon further inspection it appears that the carbon track inside of the potentiometer is completely broken and flaking off. Does anyone have any ideas if there is a modern replacement...
  10. E

    Any one know the colors for Marantz 1150 Volume Wiring

    I've got an 1150 that had the volume and power cut out, there's a lot of butchered wires in there now, anyone who's done one remember what color wires go to where? Thanks!
  11. k03a05

    2285 (non B) - Right Channel Rumble

    Hi, New to the forum... I have a Marantz 2285 (non B) that was stored for more years than I would care to admit to. I recently put it back into use, and have DeoxIT'd all the push buttons and controls, which has eliminated all issues but one. While playing music or simply on with no source...
  12. 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...
  13. Homey4uk

    Marantz HD77 no tweeter and no midrange in one, HELP!

    Hello AK repair gurus. I have a pair of Marantz HD77s. They were rough when I got them. One picture looked good, the other they kept the cover on. Oh well. The crossover dials were stuck, but all of the speakers were working. After reading a lot here I purchased some Caig Deoxit. I disassembled...
  14. barbazoo

    Pioneer SA-9100 volume potentiometer issues

    Hi! I've read several posts on this, but i do not want to hijack an old thread. I have a SA-9100 that worked great until i wanted to clean the front panel, in doing so the volume knob was really stuck on the potentiometer shaft so when i pulled it off it must have been damaged in some way...
  15. ritchie

    Luxman LV-105 Pots No Longer Available

    Hi All, I have a Luxman LV-105 that I'd like to repair if possible. The bass adjustment pops loudly in a couple spots at the middle, and the treble adjustment pops at a spot near the high end. When I set the volume adjustment at a low setting, loud enough to enjoy without waking the family...
  16. 6nylonvinyl

    Magnavox Astro Sonic pot trouble

    Hey all, It's my first post. Hoping somebody might point me in the right direction. Basically I've a volume pot that's gone bad on my Magnavox Astro Sonic (chassis # R23104 DA). And, I need a replacement. The conductive material has worn off of the left channel's wiper. As a result I get very...
  17. margus_

    AU555A volume potentiometer

    Does anyone know if sansui au555 and au555a share the same volume potentiometer? There is one for sale on ebay, but the seller also doesn't know if it fits both...
  18. S

    Luxman r-115 volume troubles

    Hi AK! Been a longtime reader, new poster. I recently picked up a Luxman R-115. Off the bat I noticed some problems with a scratchy volume knob and balance, so I deoxited all the pots. Balance knob works well now, but the volume knob is still acting strangely (so I think...). When the volume is...
  19. JayPare

    TLDR Deoxit Guide

    Foreword Since Caig Laboratories now have a lot of different products and The Idiot's Guide to Using DeOxit (revisited) is becoming a bit old, I decided to do a shortened version of it with spoilers for those who want more information. Also, I added a definitions part for word underlined and in...
  20. BrianC7927

    Dynaco St-70 Voltage Question

    Hi All, First post and kinda new to tube audio so forgive any ignorance. I purchased about 6 months ago an original Dynaco St-70 amp, not the new ones but an early 60s model. Been enjoying it and it's all be working great, i have a Scott Type 130 pre-amp that it is plugged into. Just...
  21. jFF_Bulbo

    Marantz 2440 help!

    Hello! I recently got a 2440 unit, nice shape, horrible sound!!, it has a pair of 2CS1445 transistors on output stage and a pair of NTE175 in the same stage, so, i think it has been repaired/modified befor. The thing really worries me is the unit doesn´t have the "dimension" potentiometer. I...
  22. Aaron99

    Marantz 2275 tone board pot broken (not shaft), recommendations?

    I am working on restoring a Marantz 2275. It has several issues that I am working through.... One of the issues was that the bass knob doesn't click between settings, it is continuously smooth. So I took out the tone board and see the back half of the pot sitting there. Luckily none of the...
  23. gregmcm

    Why my right channel wasn't working - 2275

    Here is my story: Background: I've owned my 2275 for about 20 years and it has been used on a regular basis with no significant issues other than some scratchy pots and erratic Selector switch which I Deoxited some years ago. Last night I went to listen to some music and as soon as the tone...
  24. RSMRecording

    AR2A and AR4X Potentiometer Replacements?

    Hi, I have 2 pairs of AR4X's and 1 Pair of AR2A speakers all seem to have issues with the pots. I don't have anytime to do cleaning of the OEM parts, but I would like to just drop in new Pots. There is so much information about cleaning and restoration, that I am some what confused and lost...
  25. 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...
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