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recap

  1. joestcyr

    After Burn-in...........?

    Question; after a full recap (in my case au20k) lets say I’ve set bias and came out very close to spec. In a perfect world, it sounds fantastic. Then I do a standard(?) burn-in, Does burn-in Alter bias? To the point it requires adjustments? ?:bowdown::bowdown:I await wisdom of the AK...
  2. B

    Did something on KLH Model 5 —help

    Hi, thought I was finishing up a successful Model 5 recap, 1st one was great and sounds terrific. On the second one the cover was complete and begat to reassemble...cover back in, sealed, replace putty on midrange, reinstalled mid range all good. Put the tweeter in (I know it worked prior, after...
  3. B

    Tweeter replacement and recap: Sansui SP-30

    You folks were very helpful a while back when I needed advice on finding new tweeters for my spare speakers I moved or my living room stereo, a set of Sansui SP-30s. So I’m finally getting around to it now that I have the tweeters but I’m not sure what else I need. I’m guessing it’s: digital...
  4. davstev

    Crossover recap: Seeking guidance on Film Caps

    When it comes to replacing film caps, the options are many, and it's easy to spend a lot of dollars, only to experiment with very slight variances in sound. I was advised to replace the film caps in a crossover of a nice pair of Canadian-made Clements "Little D" bookshelf speakers from the...
  5. Beavs

    Yamaha CR-2040 Shorted During DC/Bias/Voltage Adjustment

    Well, I'm pretty new to this and probably have no business digging into the likes of a CR-2040, but this is what I've found to pass the time and I'm enjoying every second of it. I picked this CR-2040 up for $200 knowing it was cosmetically great aside from being dirty and there was no sound out...
  6. cykotic

    JBL C40 Harkness N1200 Crossover Recapping

    Greetings: I have an early model JBL C40 Harkess with the D130A, 175DLH, and N1200 Crossover. I would like to change the capacitors in the N1200 as they have to be about 60 years old now (or older). I opened up the N1200 and am faced with this wax/resin substance securing the caps to the inside...
  7. Will_Emanuel

    Sansui AU-11000 Restoration Attempt

    Hello all, new user here, sorry if I don't get the formatting quite right. I'm currently starting on a full restoration and recap of my newly acquired Sansui AU-11000. It's had a rough life, with a previous tech who, for some unexplainable reason, cut off almost all of the easy to disconnect...
  8. Donato808

    Harman Kardon 330B “simple” recap??

    Admittedly I am a newbie as far as working on the insides of receivers go. I’m pretty skilled with a can of DeOxit but that’s about it I recently acquired a lovely HK 330B (made in Taiwan) and though it sounds great other than a bit of occasional crackling in the right speaker when I first turn...
  9. Y

    Snubber Cap Value?

    My Kenwood KR 8050 makes a loud 'pop' sound when shutting the unit down. The on/off switch includes this capacitor marked 103P. Would this Cap be a good replacement?
  10. VintageDutch

    My "new" Pioneer SX 590... The dogs kahuna!

    Last day of January I gave myself a little present... Bought a Pioneer SX 590 Receiver to do up and get familiar with the Pioneer Receiver brand... Bought with 2 flaws... FM tuner did not always work the seller told me.. And the black Vinyl "veneer" on the sides is coming off... I thought €...
  11. P

    Sansui QRX 6500 partial recap project

    Hi, I have a sansui QRX 6500 quad receiver. It still has all original parts and I do like the sound of it as it is now. Since it's a quad receiver with 2 separate amplifier sections, I feel tempted to perform a recap of the "front" amp section only and leave the "rear" section as is. This will...
  12. Zeus12

    Sansui AU-2900 Recap/Restore

    Greetings Audiophiles, Have this wonderful Sansui that I would like to do a full Recap and Restore on it. It was working great before but would like to do it, first to practice and learn and secondly, to do something and not go crazy during this so-called f******g pandemic. "The devil finds...
  13. bandwagoner

    Yamaha C-2 component leak

    Hi Everyone, I love this forum to bits and constantly read around but don't get to contribute much because I don't often get my hands on vintage gear. I was lucky enough to inherit a Yamaha C-2 pre-amplifier and Bryston 4B amplifier combo from my pops that he hasn't touched in several years -...
  14. Jkaput

    Does a recap improve the phono stage?

    Hi everyone out there, I've been trying to get my Rotel rp3000 and my sansui 2000x to play nice together. The speakers are currently Klipsch kg4.5's and a some cambridge audio s30's. It sounds good when I stream spotify thru a blue tooth receiver in the aux, but when I play records, not so...
  15. P

    Yamaha CR-1020 recap

    Hi folks I bought recently a nice Yamaha CR-1020 vintage receiver, but sounds terrible. Obviously need recapping. Can you recommend me where in Midlands or London U.K. I can do that? Cheers And happy new year
  16. S

    2250B Rebuild

    HI Guys, I'm new to the forum, and rebuilding receivers. This is my first go at real electrical work aside from replacing a few resistors on my Fender DeVille amp and home electrical/splicing wires. I have soldered stuff in the past. I am an engineer by trade, so I understand it, but there...
  17. Zeus12

    Sansui AU-2200 Restore & Recap

    Hello Audiophiles, I have been infected with the "Sansui" bug. :music: I am fascinated with their sound and build quality. I got this little gem and would like to know if anyone has done a restoration and recap on it. It obviously needs a very good cleaning and from the looks of it...
  18. S

    AM not working after recapping power supply

    I recapped the power supply of my MCS 3223 and it was somewhat successful, I made the hum go and it's sounding a lot better now. However, I believe that in the process I might've moved or fried something that stopped the AM signal from working. What should I look for and where should I look if I...
  19. C

    DuKane Model IA385 Restore

    Starting on this little DuKane amp I got last summer. I began with the power cord which was roached. I thought it a good idea to go with a heavy grounded three prong plug. However I read somewhere that’s a bad idea in this case due to the way the microphone Is supposed to work. Not sure I’ll use...
  20. goodshelac

    Marantz 2220b Dead right channel

    Happy belated turkey day AK! Just finished recapping the phono board, power supply board, and pre amp/tone board. As was when I started the right channel is dead on all inputs. Power supply tested at 35mv. Idle current set at 20mv. Left channel DC is 0 and I can see it move as I adjust the trim...
  21. S

    Failure-Recapping a MCS 3223

    Short story: I tried recapping my receiver's power supply, it worked at first but the left channel died after I moved it a little, i opened it and noticed that one of the capacitors had gotten loose, I tried to reconnect it and now it won't power on. Question: What could've caused this? Is...
  22. esteboune

    Yamaha CR-1020 restoration

    Hello Folks, I have a beautiful CR-1020 that needs some attention. It is in overall good working condition. However, there is a couple of minor issues: the lights are gone some pots are scratchy and need a good cleaning the wooden cabinet requires some love I recently became addicted to...
  23. Richs_Trains

    Bose 1801 power amp restore/recap

    Hello all, I post mostly in the Marantz forum as I have recapped about 20 Marantz units, but an old friend who seems to have more equipment than he can deal with has offered to give me a Bose 1801 power amp (250 watts per channel and 26 TO3 outputs!) that is in working condition. I have no...
  24. J

    Technics SL-1600 MK1 reCAP Need Advice

    Can someone get me started on how to reCAP my sl-1600 MK1? Having no issues just heard it’s something that usually needs doing on older technics and I want my deck in the best shape possible. I have no electrical engineering experience but going to be assisted by my friend that does. Where can I...
  25. BeCool

    MA-5100 Serial Numbers Starting With AA

    I have an MA-5100 with serial number AA1542. I finally found something that even mentions serial numbers starting with AA, and it looks like the serial numbers are as follows: 10H01 - 99H99 & AA1001 - AA1561 Is anyone aware of any significance with the changeover to AA? And is the service...
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