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capacitors

  1. M

    Audio Research AR-698, how many capacitors ?

    I'm working on solving a "wow" and "flutter" issue that occasionaly shows up. I've replace the .047m filter capacitor, and have a new belt on order. Does anybody know if there is another capacitor hiding within the turntable, before I bother with further disassembly ?
    • MKTPhoto
    • Thread
    • audio research capacitors tuneup upgrade
    • Replies: 0
    • Forum: Turntables
  2. J

    SL-D303 Recap?

    TL;DR - complete recap? Or be selective? -- I've recently acquired a D303, which after a clean and lube is working well. The main reservoir cap is an unusual size, but I've got an over-specified part on the way from mouser. I've read some suggestions to leave the rest of the caps alone...
    • J1mbo
    • Thread
    • capacitors technics sl-d303
    • Replies: 2
    • Forum: Turntables
  3. F

    Types of capacitors for different stages in a solid-state amplifier

    Hi! Brief introduction: I didn't study electronics; I started this hobby when I came across my first Lenco turntable. Then came some old dual turntables and my first amplifiers… I've been browsing forums and auction sites foryears (laughs) I live in Switzerland, I speak Spanish and German, and...
    • fermaleb
    • Thread
    • audiograde capacitors solid-state
    • Replies: 12
    • Forum: Solid State
  4. JackieJoe

    Sansui AU-317 caps

    Hi folks!!! I recently bought a Sansui AU-317 and after a quick look under the cover i noticed some capacitors, 6, have been replaced by axial caps brand ITT 100v 330mF. If i'm not wrong original ones on this model were ELNA 50v 470mF. Can that somehow wrong recap cause any problem? The amp, for...
  5. GrisPato

    Capacitor:Ripple current rating, how high is needed?

    I spend most of my time on the "Sansui Exclusive" forum. I also scroll past the new messages frequently and lately notice a lot of comments about ripple current when members advice other members about choosing capacitors. Often the advice is : the one with the highest ripple current! First, I...
    • GrisPato
    • Thread
    • capacitors
    • Replies: 21
    • Forum: DIY
  6. G

    Onkyo TX-1500 MKll replace power supply capacitors

    I want to replace the power supply caps on my Onkyo TX-1500 MKll. Current installed caps are Marcon CE62W-C 47oouF 35WV. Have a hard time locating a replacement for them. Anyone have a idea were I can get replacements?
  7. R

    Are these capacitors?

    I am going to try and recap a Paradigm Millenia CT system that no longer produces sound. Like many of these units it started off needing time to warm up, 15 to 20 minutes, before you get decent sound. It started like that and now no longer produces any sound. Paradigm does not offer up manuals...
  8. Mat86

    Using lower voltage caps in a crossover?

    I'm upgrading a pair of crossovers and, as you may know, the bipolar electrolytic in many of these are hard to find 1:1 replacements for these days. Is it okay to use a lower voltage 50v cap in place of a stock 100v BP? I've been reading online and seeing mixed opinions between "never go lower...
    • Mat86
    • Thread
    • capacitors crossovers
    • Replies: 18
    • Forum: DIY
  9. S

    Vintage Ampex Crossover Cap Help

    Happy New Year, I am a noob and would like some insight. I seem to believe the 1 capacitor is for the mid/high speakers, in a 2 way design. 1 mid, 1 tweeter. 1 woofer. I posted a photo of the capacitor, only 1 for these speakers. Can someone help me identify these as "original", and what I...
    • SCI OTR
    • Thread
    • 2way ampex capacitors crossovers cts vintage
    • Replies: 11
    • Forum: Speakers
  10. H

    (RCA VPT70E) Radio and Amp not powering on - my first restoration of a solid state radio, looking for help.

    Hi! I recently picked up a RCA VPT70E (circa 1970) from FB marketplace and was looking for some guidance on where to start with restoring a solid state radio. From my understanding they didn't make many of them, so it's hard to find documentation for them. It's a stereo console with a turntable...
    • hennery
    • Thread
    • amplifier capacitors rca restoration help solid state
    • Replies: 2
    • Forum: Solid State
  11. A

    Heathkit AA-1640 recap assorted questions

    Howdy, I'm doing a recap on my Heathkit AA-1640 to bring it into the modern area and hopefully in service for many more years. As this is my first foray into doing this, I've run into some things and have some questions. 1. There are some low-voltage non-polar electrolytics on the amplifier...
  12. S

    Help with Capacitor readings

    I am just learning about reading schematics and the symbols. Looked up capacitor symbols and cant find anything referring to the left or right bracket with the thick line inside. For capacitors in my AKAI 1820D Service Manual, it shows the following capacitor symbols Which sides of...
    • Smack2k
    • Thread
    • akai 1820d capacitors reel to reel akai
    • Replies: 5
    • Forum: Tape
  13. Dig22

    Vintage European Capacitor Values - How to read them

    Hi, I'm working on a friend's French radio and want to make sure I'm reading the values correctly. They use commas or decimal points in some values. Is 20.000 uuf 1.500 VCC = 20K 1.5V? Please correct me. I'm completely thrown by the 100/1000 marking. I've attached a few photos to illustrate...
  14. M

    Spec sheet vs actual electrolytic capacitor discrepancy

    I’m in the process of replacing the electrolytic capacitors in a vintage 1947 Magnavox CR-197 radio/phono console, and ran into a small issue, where the voltage ratings on the can that I’m replacing don’t match the voltage ratings of the same cap on the radio’s original spec sheet. I’m trying to...
    • Mai Tai
    • Thread
    • capacitors electrolytic magnavox radio console vintage
    • Replies: 7
    • Forum: Tube Audio
  15. Gerge_Sletar

    Tandberg 3041x Capacitors

    Hello I'm currently going through recapping and testing the electronics in my Tandberg 3041x reel-to-reel. So far, I've sourced all but one capacitor replacement. The value in question is 500uf 12v; there are two, and they are for the left and right audio amplification. All I've been able to...
    • Gerge_Sletar
    • Thread
    • capacitors reel to reel tandberg
    • Replies: 2
    • Forum: Tape
  16. spctrlhrmny

    replacement parts and substitutions

    Just looking for some general "rules of thumb" ... quite a newbie here. How important is finding replacement components (such as capacitors) that are audio quality? Do you have recommended vendors for finding these? Do you have any preferred places to shop for components in general? (RIP...
  17. $10_LR-5555A

    Finding outside foil on new CDE and IC caps

    I am trying to find the outside foil of a few different CDE and IC caps but no matter how I test them I can't find a difference either way... I have tried using an oscilloscope (HP 130C) and connecting to an amplifier to check for sound differences. No luck.. When connecting NOS Sprague 715P...
  18. spctrlhrmny

    Pioneer SX-737 project...capacitor ID needed on control amp

    Hey there. Attempting my first receiver rebuild on a Pioneer SX-737, and I am preliminarily checking components on the boards to the specs in the manual before I start testing, purchasing, and repalcing. Ran into an issue on the control amplifier assembly board. Specifically, C1 + C2 and C23 +...
  19. Mat86

    Polystyrene cap question

    So I over the last week I ended up with two completely opposing take on some capacitors that has left me scratching my head. I was recently re-capping a DAC (don't ask) and someone (Guy #1) pointed out that the manufacturer was using polystyrene capacitors and that I *need* to replace them all...
    • Mat86
    • Thread
    • capacitors dac polystyrene
    • Replies: 16
    • Forum: DIY
  20. M

    Fried Q3 Cap Replacement

    I'm a relative novice at this but am going to try and replace the binding posts on my Fried Q3 speakers. While I've got it opened up, I thought I'd replace the caps in the crossovers as well. I found a schematic on the web and purchased new caps from Parts Express. The 8uF seem to be polarized...
    • msobeldc
    • Thread
    • capacitors crossover fried
    • Replies: 4
    • Forum: Speakers
  21. Anaxas

    Technics Capacitor Differences

    Hi, I'm looking at re-capping a Technics SA-500 receiver and was wondering if anyone knows how I can find out the differences between the following capacitors: 0.47uf 50V ECEA2ASR47 0.47uf 50V ECEA50ZR47 0.47uf 50V ECEA50MR47R All are the same capacitance and voltage, but I can't find out...
  22. Mat86

    Best option for low value caps?

    So I'm restoring a new amp at the moment and while picking out which capacitors to order, I thought maybe I'd assess my options this time now that I'm familiar with the brands. While I'm shooting for an Elna Silmics build, the smaller 1uf caps are what's throwing me since they don't get...
    • Mat86
    • Thread
    • capacitors
    • Replies: 9
    • Forum: DIY
  23. nicst

    Should I replace CQ92M capacitor in the signal path with ECWF2124JAQ?

    I am recapping my NAD 2100, mostly changing the electrolytes. But there is a 0,1 uF/50V polyester film cap named CQ92M in the signal path, and I am wondering if it would be an upgrade to replace it with a Panasonic ECWF(A) 0,12 uF/250V that I happen to have in store? Edit: Now I see that I also...
  24. H

    Crossover Capacitor Quality and Kirchhoff's Laws

    In almost every thread regarding recapping vintage speakers, people refer to capacitors which carry the signal "through" vs. those that "bypass" a driver and therefore don't benefit from a higher quality capacitor. It's my opinion, grounded (no pun intended) in Kirchhoff's laws, that this is...
    • hh66
    • Thread
    • capacitors caps crossovers electrolytic film
    • Replies: 16
    • Forum: Speakers
  25. CrazeeD

    Replacement for 15000uf 100v 40mm dia cap

    Hello All! Looking for advice on replacing a bad cap. All of my usual haunts Digi-Key, Newark, Mouser, seem to be no stock or giant bulk orders. I have found Elna’s on EBay but not sure they can be trusted. The cap I’m looking for is 15000uf 100v 40mm diameter 4 pin (2 for support). The caps are...
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