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recap

  1. S

    sansui 881 background noise - cyclical ticking sound

    so I have a Sansui 881. I decided to recap it earlier this summer and it had been working fine. Over the weekend, I sat down near my speakers while no music was playing and started hearing a persistent ticking/flapping sound. It's not a hum but a cyclical ticking sound. If I had to guess...
  2. Rob DeFries

    HK 490i - how lots of dust can be handy

    At first it looked like the TK caps were leaking. But it turned out to be glue..... But looking further into the receiver, I did find some leaking caps. Then all the dust [sneeze] comes in handy. Recap, yes, please.
  3. Briant8

    Marantz 2215B popped it's top

    So, there I was.... I'm super stoked after a wildly successful 2250B recap last week. I carefully choose my next victim, the sweet little 2215B that has been waiting patiently for some lovin'. Very methodically (as all you fantastic gurus recommend) I start with the: Tone board: Recap, test...
  4. S

    Sherwood S8000 Receiver... Repair?

    Hello people of Audio Karma, I bought this Sherwood S8000 receiver from a thrift store for $4. It was actually installed in a rather low quality cabinet, so they were selling the whole stereo cabinet setup for $4. I saw the tubes and figured I'd snatch it up. My questions to you all: 1. What...
    • stuessy
    • Thread
    • help recap repair s8000 sherwood
    • Replies: 13
    • Forum: Tube Audio
  5. QSilver

    Akai AA-930 anyone got one?

    I picked one of these up the other day. It had a load of wires cut on the power amp board and all the differential pair transistors were missing. So, after some swatting up with the service manual and some new transistors and trimmers, it was alive and singing. I then went on to do a re-cap and...
    • QSilver
    • Thread
    • aa-930 akai lamps recap tuning needle
    • Replies: 0
    • Forum: Solid State
  6. Rob DeFries

    Sharp STM-31 Spage Age, only hum..

    Got this Sharp Space Age Amp to see if one could get it to work again. A quick look revealed 3 blown power transistors, all 2SC1060, and a C-E shorted 2SC984. The last one could give some trouble to find. EDIT: I had some in one of the drawers. The amp is far from mint, knobs are totally...
  7. dlucy

    Recap and restore Harman Kardon HK 330B (recap BOM under development)

    Note: don't use the below recap list yet as it is under development, not finalized. I have two HK 330B stereo receivers, the "Roland" model, that I'm planning to recap and restore. Here are the components I'm planning to replace along with the parts from Mouser. Your comments and corrections...
    • dlucy
    • Thread
    • 330b harman kardon harman kardon 330b hk recap
    • Replies: 41
    • Forum: Solid State
  8. Rob DeFries

    How far can one go? KA-3750

    After listening to the newly acquired KA-3750, I decided to give it a try to make it sound even better. I did get the idea that I was doing some overkill on the little girl. But who knows. The unit was kinda dirty inside. Since you had to take the whole unit apart to get underneath the...
  9. Richs_Trains

    Marantz 1060 Recap list.

    I finally found a 1060, since everybody raves so much about them, it will be here next week and I would like to recap this unit. I was wondering if there is a stock list (value for value as, or close as possible) for this unit. I have seen some threads on upgrades and modifications, but I...
  10. QSilver

    Is it the IC or something else?

    I've been working on an SX-V80 I picked up a month ago or so. Giving it a recap, replacing very worn trimmers and some resistors. I finished the job and powered it on for a test to find the left channel was very weak. After a lot of probing, I've found that the signal remains strong all the way...
    • QSilver
    • Thread
    • no sound recap restoration sx-v80 sx-v90
    • Replies: 27
    • Forum: Pioneer Audio
  11. MarbleSwitchboard

    My Altec 19 Story

    Recently I found a pair of Altec 19s for an unmentionable price. Let's just say it was a good deal ;) I just barely managed to fit them into my car! I had to remove the woofers and the horns in order to lift them. They are mighty heavy speakers after all. :) After I got them home I...
  12. Richs_Trains

    HELP.... Marantz 4230

    Well, I thought I completed a sucessful recap of the amp and power supply boards in my 4230, but when I go to set the 'audio adjustment' as described in the SM, connecting a DVM to Pin 711 (-) and Pin 717(+) and set for 15mv dc, likewise Pin 712 (-) and Pin 718 (+). On the right channel the...
  13. Richs_Trains

    Lousy foils on 2220b

    Well, after successfully completing my first recap, I decided to go after my 2220b since I figured it would be an easy job. The power supply board was pretty simple and then I moved on to the amp board and man I could not believe how bad the foil work is on this board. Foil is missing from...
  14. R

    Finally fixed my 771

    I bought a 771 from a flea market last year and enjoyed it for a while. It started popping and cracking on the left channel, and near the same time I stumbled upon a Realistic STA-90 that work fine. So I swapped it in and set the 771 aside. I recapped the 771 ~6 months back, but a hiss...
  15. WytErp

    Paradigm 9se MkII - Capacitor combinations

    Thanks to advice from this forum I ended up with a pair of 25-ish year old Paradigms. I'm pretty sure there were some pointers on replacing the crossover caps in the original thread but unfortunately that thread was lost in May's forum crash. Anyway, there is a slight difference in tweeter...
    • WytErp
    • Thread
    • paradigm recap
    • Replies: 2
    • Forum: Speakers
  16. MiauwMaster

    Sansui AU-217 repair

    Hello everyone, This being my first post here i'm hoping not to be an idiot in my questions. Also, I'll try to post something about me asap. My problem though: I have a Sansui AU-217 (as you might have guessed by the post title), bought it secondhand a while back and it looks near mint.The...
  17. J

    1959 Gibsonette refresh

    Here is a video I made documenting a repair I did on the 59 Gibsonette using some extra care to keep the components looking as stock as possible. This one was plugged in when it should not have been so every thing needed to be tested after a complete burn out. The restoration movie The...
    • JRUBIN
    • Thread
    • 6v6 6v6gt gibson gibsonette recap single ended
    • Replies: 4
    • Forum: Tube Audio
  18. Black.Audio.Co

    Sansui BA 3000 Recap

    Hi Guys, Need help!! Completed the recap on the BA3000 and upon powering up there was a problem, upon investigation found out that 2 power transistors were busted. These are Sanken 2SC1585. I am getting a replacement of NOS Sanken 2SC1586 for these and according to the data sheets I...
  19. D

    CR800 poor bass performance

    Hello all, I have a CR800 that I've owned for the last two years but haven't used it in quite a while. So with some trepidation I connected it up to some old speakers and switched it on, the relay clicked and sound came out of the speakers. The volume and tone pots were silent and smooth, a...
  20. S

    sansui 881 recap - filter cap bypass?

    In the midst of recapping my Sansui 881 amp. Stock the amp has 3.3 kohm resistors across the 10k uf main filter cap terminals. Most of my previous recaps have been marantz receivers and the group wisdom seems to be that they benefit from a bypass cap on the main filter caps. Any benefit to...
  21. macman007

    Marantz 1200 (Not B) Freshening Up...Consensus..

    Hello folks, getting ready to take my 1200 offline for some maintenance and tuning. Its been on the bench once for relay board caps and diodes back in '09, along with Deoxit and Faderlube, the normal stuff. Now on it's 46th birthday I'd like to do something special. Catrafter and I spoke and he...
    • macman007
    • Thread
    • 1200 capacitors diodes diy integrated amplifier marantz recap transistors upgrade
    • Replies: 2
    • Forum: Marantz Audio
  22. jmosher

    Marantz 2220B 'LOUD' popping noise!

    After about 20 minutes of use I got a LOUD popping noise. It sounds like if you were to drop a needle onto a record very violently and the volume is set to 11. I had to run over and shut it down. To be fair, it has NOT been restored but I cleaned the pots pretty good. Not sure what this could...
    • jmosher
    • Thread
    • caps marantz marantz 220b popping noise power recap restore
    • Replies: 3
    • Forum: Marantz Audio
  23. Y

    2238 recap list?

    Hello everyone. I just joined club, I spend many times from days to googling and visit every marantz lovers site and I figure this site is best information I may get. (Sorry my English). So I was read here two days from any free times for trying to find 2238 recap information, now pretty much...
  24. HiResDes

    Vintage Speaker Dilemma, Need Advice

    Howdy guys I recently stumbled upon this forum about a month ago and after a month of lurking I realized that the guys around here seem more down to earth than folks around headfi with more vintage audio equipment knowledge. I'm happy to say I've also recently made the jump into finding a nice...
    • HiResDes
    • Thread
    • boston acoustics a150 pioneer hpm-100 polk audio monitor 5 recap sony ss-7330 vintage speakers
    • Replies: 29
    • Forum: Speakers
  25. O

    Looking for someone in the Seattle area to recap a KA 701

    Hello, I have Kenwood KA 701 that needs recapped. I'm also open to any mods and upgrades that will make the stereo sweeter than it already is. I live in Olympia, WA and would like to find someone within driving distance. Anyone out there?
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