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recap

  1. mattsd

    Pioneer SPEC-2 recap and restoration thread!

    Man, it has been awhile since I posted one of these threads! Everything has taken off so fast in the past couple of years, I've been crazy busy keeping up with everything. Some background on this unit, I got this from a guy who I restored a SPEC-1 and SPEC-2 for about a year and half ago. Long...
    • mattsd
    • Thread
    • list pioneer recap restoration spec-2
    • Replies: 87
    • Forum: Pioneer Audio
  2. jozeppy26

    Sansui SP-5500 Restoration

    Hey all; I’m starting this thread to catolog the restoration of my SP-5500s. I just picked up 4 of these massive bad boys for $40 today. I’ll inspect them closer tomorrow or this weekend but right now it appears they’re in pretty good cosmetic shape. I just popped a grill cover off for the...
    • jozeppy26
    • Thread
    • japanese recap sansui sp-5500 sp-5500x speaker speakers
    • Replies: 37
    • Forum: Speakers
  3. Leestereo

    Leestereo's Restoration and Upgrade Of A Marantz 2270

    A nice 2270 was on the bench for restoration/upgrade of the power supply, preamplifier, power amplifier and phono stages. Main Power Capacitors The original Elna 9,000µF/55V capacitors were replaced with Kemet 15,000µF/63V capacitors. Note that the original capacitors measured ~11,800µF at...
  4. elgrillo

    Some help with Marantz 7T Restoration.

    Hello everybody, I just got a Marantz 7T(SN: 18,437) this week , its in nice shape for how much I paid for it. Maybe someone can help me across this journey of trying to restore it. I know how to solder and use the multi meter . In the past I already restored a marantz 32 with a lot of help of...
    • elgrillo
    • Thread
    • help help needed marantz 7t recap restoration project
    • Replies: 8
    • Forum: Marantz Audio
  5. davstev

    Recapped Tannoy crossover, a bit of static

    I just recapped one of my Tannoy Gold crossovers with Sonicap Gen 1's. Immediately it sounded great, noticeably clearer and better- but I am bothered by a bit of static here and there, especially in musical passages with prominent bass. Is this static a symptom of a not-yet-broken-in cap, or...
    • davstev
    • Thread
    • crossover crossovers monitor gold recap sonicap sonicaps speakers tannoy
    • Replies: 7
    • Forum: Speakers
  6. Mr. Yamaha

    New project: Micro Seiki DDX-1000 overhaul

    I wanted a Micro Seiki DDX-1000 or a DQX-1000 for a long time, but it was always a bit above budget. But, as the hobby grows, the need to upgrade grows as well as many of you may know :D So I decided to sell my Yamaha YP-D8 en went looking for a Micro Seiki. Not very easy to locate one in the...
    • Mr. Yamaha
    • Thread
    • ddx-1000 ma-707 micro seiki overhaul recap
    • Replies: 68
    • Forum: Turntables
  7. S

    Fisher XP-7C Recap

    Because I cannot leave well enough alone, and because the sound from these Fisher XP-7C speakers isn't as good as I'd hoped (and because, let's face it, I'm bored), I'm setting about to recap them. I took a bunch of pictures and disconnected seven wires from the crossover, then pried the...
  8. BobEDigital

    Sansui SP-X8000 (First recap/resto project)

    Hey All, First time, long time. I've got a pair of Sansui SP-X8000's I'm looking to breathe new life into. I found a collector that was offloading a fair amount of gear for various reasons so I cleaned him out over the course of a few months. For Sansui, I was able to get my hands on a...
  9. dlucy

    Kenwood restoration, repair, recapping and servicing threads

    This thread is an index to other threads where specific Kenwood models have been restored, repaired, refurbished, recapped... or otherwise fixed. This thread exists to make it much easier to find the threads you need when restoring your Kenwood. If you've found another thread about restoring a...
  10. Flapper

    Recapping a Sansui AU-2900

    Hi all, Recently I loaned my AU-2900 to a friend who returned it as dead. It turned out to be nothing more than the neutral lead had disconnected in the mains plug, but I'd opened up the case to have a look and it looks like a recap of the AU-2900 would be a pretty straightforward operation...
  11. S

    Dumb speaker refoam question

    At some point I may possibly consider getting around to potentially think about refoaming some speakers. This is probably a dumb question, but is there any problem with leaving the woofer sitting horizontally outside the cabinet? That is, with the dust cap pointing toward the sky? Is that...
  12. davstev

    Post-Recap: What follows?

    So, recapping. It's often advised for old gear, for obvious reasons. I've done it before, to varying results, mostly good. I am good with the careful selection and replacement of caps, but I lack the knowledge of the principles of electrical circuitry and amplification that will ensure that I...
  13. DrTebi

    Sony TA-3200F Recap, my first recap!

    First of all, a big thank you to everyone here at AudioKarma, I couldn't have done it without you! It was here where I gathered most of my "vintage amplifier repair knowledge", and what gave me the courage to just go ahead and try to recap this Sony TA-3200F... I got it for under $100, but...
  14. A

    Pioneer SA-7800 sound problems

    Hi I bought this great amplifier for a good money in non-working condition... It actually works. At least it turns on and plays. But it distorts sounds very much and sound is not crispy nor have any "wow" in it. I was able to output the audio signal into the video recorder so here it is -...
  15. tusntuk2

    Kenwood KR-5600 relay/recap project; open relay needs help

    What's the best way to check the output relay in a Kenny KR-5600? This thread is actually about two KR-5600's, one being my trusted old friend that's been working 20 years in original condition, and a second 5600 with an open relay I need to fix, then recap. It is also original, but hints at a...
  16. tusntuk2

    Kenwood KR-5600 Recap Project - Where's Waldo?

    Thank goodness for this forum! I'm getting together a parts list for a KR-5600, even bought the manual, which holds info for the KR-4600 too. As I check through the cap list for the audio board (X09-1140-10) I can't find Cm 39 or Cm 40 in the schematic. I've checked the alternate s/m (4600)...
  17. dlucy

    Harman Kardon 330B series B-1 variant #3 recap and restore BOM parts list

    Here is a mostly-correct bill of materials (BOM) parts list for a specific variant of the Harman Kardon 330B or HK330B. There are several different variations of the 330B (and 330A re-badged as a 330B), so be sure to check carefully before buying parts for recapping or restoring your 330B. (A...
    • dlucy
    • Thread
    • bom harman kardon harman kardon 330b recap recapping
    • Replies: 57
    • Forum: Solid State
  18. dlucy

    Recapping and restoring a Harman Kardon 330C

    A fellow AK'er asked how to fix static in one channel of a HK330C that persisted even after a good deoxit'ing. I recommended replacing all the electrolytic caps and known-noisy transistors. Here is a quick idea of the caps and transistors involved. This is a quick answer so far, so I may have...
    • dlucy
    • Thread
    • 330c hk hk 330c hk330c recap
    • Replies: 217
    • Forum: Solid State
  19. Keith Baran

    Bias Diodes Marantz 1030

    Hello all I’m re-assembling a re-capped P700. There are two diodes, PT# HV0000212 SV-3A at H005/H006 locations on the 700 PCB. On one side has a small bump on it and the other side is flat. When I originally removed these from the heatsink I never removed the thermal paste from them, now that...
  20. B

    Bose 1800 series 1 restoration - help appreciated!

    Hi, It's the second bose 1800 series 1 in my family. My other one I also took completely apart, added a loudspreaker protection board and replaced the 2 resistors needed to avoid the board from blowing. Did the most necessary stuff on it and plays fine (except for the silent buz it makes, but...
    • belgiansound
    • Thread
    • bose bose 1800 series 1 bose amplifier capacitor recap transistor
    • Replies: 50
    • Forum: Solid State
  21. A

    Sony STR-6120 Recap

    Hi Im a newbie to Vintage Hifi, AK...everything really. I have a lot to learn and so far this forum has been super helpful. I just bought a STR6120 and I should be picking it up soon. Based on what the seller has shown me via pics and youtube the thing looks almost perfect and sounds the same...
    • Ari
    • Thread
    • 6120 recap 6120 recapping 6210 recap recapping sony sony str6120 str-6120 recap str6120 recap
    • Replies: 0
    • Forum: Solid State
  22. Mrs. Henry

    Optimizing Performance of Spendor BCIII

    Hi folks, I recently bought a pair of Spendor BCIII's, and I'm noticing a bit of harshness, especially in the high frequencies. Everything sounds good at VERY low volume, but as soon as I give them any juice, the sound quality suffers. All drivers are functional. I've been told that these are...
    • Mrs. Henry
    • Thread
    • luxman recap restoration speakers spendor
    • Replies: 4
    • Forum: Speakers
  23. billyz

    HH SCOTT 233 rebuild

    I just took possession of a very nice Scott 233, completely original as far as I could tell. I ran it up on a variac to 117vac , did a few voltage checks and set the bias and balance. Sounded pretty good a bit muddy and blurry and hum. I played it awhile anyway to get a good feel for it. Next I...
    • billyz
    • Thread
    • 299 299c 299d 7591 lk-72 polystyrene recap recapping scott
    • Replies: 32
    • Forum: Tube Audio
  24. Aaron J.

    2245 Preamp Recap Screwup - Help

    I have a feeling there's many answers to this, but are there any common mistakes made when re-capping the P400 preamp board in the 2245..?? It was the LAST board on this rebuild and now I'm only getting the right channel for output. The amp was working fine yesterday. I've used it for a...
  25. A

    AU-555 Restore, and sharing an old technique to debug a noisy channel

    I scored a non-working AU-555 off Ebay a couple of weeks ago for ~$150. Here's the ebay photo: Got it on the bench, right channel is weak, noisy and drifts. I plan on doing a restore anyway, so I ordered replacement caps and transistors from digikey. But I wanted to restore a working...
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