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capacitor

  1. T

    Recreating An Old DIY Leslie Crossover

    I have a unique Leslie speaker setup that is a modified Leslie 925 from the 70s, but only the top horn section for use in a guitar rig. I'd like to copy this crossover that was used in the original that I am copying, looks like 3 components wired in a series>parallel setup but I'm having...
    • tylerpenn
    • Thread
    • capacitor crossover leslie speaker
    • Replies: 3
    • Forum: DIY
  2. Mat86

    Fixing snapped capacitor lead

    So long (stupid) story short, was bending the lead of a filter cap (manufacturer recommendation!) and went for one final nudge to line things up nice and it snapped off at the base. First instinct is to solder on a more flexible lead from a donor cap, but just wanted to make sure before I...
    • Mat86
    • Thread
    • capacitor dumb diy things
    • Replies: 20
    • Forum: DIY
  3. I

    Recently acquired NAD C270. Recap suggestions/help? Want to extract its full potential.

    Hi everyone. I just bought a NAD c270 on Ebay. Seller says it's in good condition all good blablabla. Will get it here in a few days. I think it'll be necessary to recap the amp, plus maybe other components. Can somebody who has done this in the past share the list of the necessary caps? It's a...
  4. M

    You know your kid is going to grow up to be Gru if they ask

    "Daddy where do capacitors come from?" https://www.tubesandmore.com/tech-articles/how-can-capacitors-are-made
    • MezcalOxa
    • Thread
    • capacitor diy capacitor electrolytic capacitor manufacturing
    • Replies: 7
    • Forum: Tube Audio
  5. A

    Kappa 8A crossover issue

    Hi, I have a strange problem with Kappa 8A. When I listen at low volume, the Polygraph remains silent for a long time, it may take an hour before the sound starts to come out. The bigger the volume, the faster the element starts to work. If I increase the volume considerably, the sound can be...
  6. Eloi MV

    Realistic StA-100 driving mono

    I just got a realistic STA-100 on the cheap. Cleaned it, but cannot find the problem as to why it works only in the right channel. If I plug my speaker LL and RR in the speaker set 1, only right will play if I select speaker set 1 output. If I select Rev A output, only left speaker will play...
  7. J

    I'm trying to find a replacement capacitor for Bose 4.2 Sound Everywhere

    The capacitor is labeled, aselco mkt-010 345j100v capacitor.
    • Jada95
    • Thread
    • bose 4.2 capacitor
    • Replies: 14
    • Forum: Speakers
  8. M

    Substitutions for discontinued capacitors

    tl;dr: With some of the community’s favorite lines of electrolytic caps going away, what will/have become the new preferred components? Is it “Panasonic FC or bust”? I’ve been having a hard time sourcing certain electrolytic capacitors. In particular, many of the conventionally-recommended...
    • Matt Giarra
    • Thread
    • capacitor electrolytic capacitor elna nichicon panasonic replacement capacitor replacement capacitors
    • Replies: 12
    • Forum: Marantz Audio
  9. A

    Regular, Sharp Pops Through Stereo

    Friends, Just posted about my system for a different problem (crackling on input changes and volume pot), but here's a new one that I started tracking. Managed to read some threads about this issue, so let me go through facts: Quick, assertive pop through the left and right speaker...
  10. bzowk

    Replacing JBL L166 L-Pad Advice

    Hey Guys - I recently restored the cabinets & drivers on a pair of old JBL L166's. I replaced the caps on the crossovers with new 4 & 8 ohm ones but when testing, something didn't sound 100% right. When adjusting the L-Pads, I got a lot of cutouts and scratching. I bought some Deoxit which...
  11. C

    Magnavox Astrosonic R222 Chassis

    Hi all, I recently acquired a Magnavox Astrosonic 1P3661 (chassis R22276 DE) from its original owner. It’s in great condition and is solid state. I was able to restore the W821 turntable with a tear down, relube, new stylus, and new idler wheel. I’m now focusing on the chassis. Overall sounds...
    • csimone
    • Thread
    • astro sonic capacitor chassis magnavox output capacitor restoration resistor transistor
    • Replies: 2
    • Forum: Solid State
  12. T

    Technics SL-1800mk2 Re-cap list

    Hey everyone - did a quick search on the forum and Google - can't seem to find a re-cap list for a SL-1800mk2 - wondering if anyone has compiled this? Thanks in advance Chris
    • Tariacuri
    • Thread
    • capacitor re-cap sl-1800mk2 technics turntable
    • Replies: 7
    • Forum: Turntables
  13. david winter

    Sansui 771: incorrect polarities for C17 / C18 on F-1504 preamp board and schematic ?

    Hi, I have been wondering what caused some low background noise on a 771 which I almost completely restored. Two electrolytics on the F-1504 preamp board (C17 and C18) apparently have incorrect polarities both on the schematic and the pcb silkscreen. They had -5V accross them. The 2SC1313 were...
  14. davstev

    Inductors for dummies - crossover conundrum

    I'm probably in over my head again, that's why I'm turning to AK. I am endeavouring to repair a crossover that I'm sure is faulty, somehow. It's for a Rogers LS7. I'm sure it's faulty because I've tested the woofer and tweeter and they're producing sound when a signal is applied directly. All...
    • davstev
    • Thread
    • capacitor crossover dmm speaker test
    • Replies: 8
    • Forum: Speakers
  15. Yemm66

    Thorens TD 145 mk1

    Hello and good morning! I have a Thorens TD 145 mk1 that I cannot get the platter to “bite” on startup. It spins fine, but I have to push the platter to get it going, otherwise it slips on the motor spindle. Once going it spins at 33.3. I have a brand new Thorens belt too. Spindle and platter...
    • Yemm66
    • Thread
    • 145 mk1 belt capacitor repair restore td thorens vintage
    • Replies: 12
    • Forum: Turntables
  16. Pretzelogic

    Capacitors in vintage Sansui speakers (SP-2500X)

    Does anyone know where the capacitors are mounted inside vintage Sansui speakers, specifically SP-2500X’s? I’ve done the DOT-3 trick with the surrounds and at this point I think the last thing they need would be new caps. Changing them doesn’t look too hard but knowing where they are in the...
    • Pretzelogic
    • Thread
    • cap job capacitor cross overs sansui sp 2500x
    • Replies: 17
    • Forum: Speakers
  17. goldswimmerb

    SX-1250 back to back tantalum capacitors

    Hey guys, was looking at the SX-1250 and noticed it used 2x 22uf Tantalums in a few locations, they're back to back to make a (roughly) 11uf bipolar cap. Is there any reason they can't just be replaced with a single high quality bipolar cap like a Nichicon UES?
  18. Virus

    Both drivers go higher in freq

    Hello, I'm new to this site, but I've been into audio for a long time, and am even making my own album! I've created an account to post about a peculiar problem. I have these very cool speakers "ATL CELEBRATION" and they have this problem where both the bass and the tweeter play at a slightly...
    • Virus
    • Thread
    • bass capacitor cross overs driver help trouble shooting tweeter
    • Replies: 31
    • Forum: DIY
  19. H

    Yamaha C-4. Capacitor types on the main board.

    Hello.. Does anyone have a list (BOM?) for replacement of capacitor types ('low ESR,' or 'good for power supply' designations is what I'm really after) on the Yamaha C-4’s main board? (The ‘Function C Board NA 07149.’) Could probably buy all Nichicon FG or Panasonic FC but would be grateful...
    • Hifibythekg
    • Thread
    • c-4 c-4 preamp capacitor nichicon capacitor range nichicon fine gold nichicon muse panasonic yamaha yamaha c-4
    • Replies: 33
    • Forum: Yamaha
  20. H

    SB-C 250 speakers crossover

    Post deleted. Found an answer from schematic.
    • Hifibythekg
    • Thread
    • capacitor cross overs crossover crossover cap value national panasonic sb-c250 speaker
    • Replies: 0
    • Forum: Speakers
  21. J

    Locating Bad Capacitors

    I just finished cleaning a Realistic QTA-790 (a.k.a. Kenwood KR-8140), and while I've eliminated virtually all the POTS generated static, I still have a nominal buzz/hum regardless of input, speakers, cables, etc. Sound is otherwise very good, which leads me to believe I may have one or more...
    • Jason299
    • Thread
    • capacitor realistic solid state receiver
    • Replies: 4
    • Forum: Solid State
  22. C

    Puzzling issue with c1963 MC250 distortion

    I have a much loved system that I inherited from my father: Mcintosh MC250 amp MX 112 preamp/tuner Bozak B400a loudspeakers All purchased in 1963 Several months ago, the system developed an issue with the left channel, a muffled, distorted, crackly sound. I swapped speakers L-R, and the...
  23. AuburnM5

    Potential issue with a new C2700, does this look normal??

    I got a new C2700 about a month ago. Recently, an audible hum/hiss/static developed in the fronts. I went through the process of finding the source and it was the I have had an issue with the left balanced main out causing a hiss and hum static in both channels, The left balanced main out. When...
    • AuburnM5
    • Thread
    • c2700 capacitor mcintosh tubes tube preamplifier
    • Replies: 14
    • Forum: McIntosh Audio
  24. H

    Speaker crossover capacitor advice - Technics SB C-250

    Have just acquired a pair of Technics SB C-250 vintage speakers. Generally they’re positively reviewed and I’d like to get them performing at their optimum. Questions: -What is the key quality one should seek in capacitors being used in a loudspeaker crossover (low leakage? or something...
    • Hifibythekg
    • Thread
    • capacitor crossover crossover capacitors loudspeaker sb-c250 speaker technics
    • Replies: 19
    • Forum: Speakers
  25. Leestereo

    Why does Leestereo insist on increasing power supply/decoupling capacitors?

    I often get asked why should one consider judicious increases to the capacity of a power supply. I typically respond as such: It can be argued that the power supply is in the signal path, it's essentially in series with the output stage and hence does impact the sound of an amplifier. Nelson...
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