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recap

  1. Zeus12

    Fisher XP-7 Recap

    Hello Everyone, Decided to try my luck at a 2nd set of Vintage Speakers. Speaker sounds great as is but the tweeter seems almost dead. So I order all the parts from audiophonics.fr and decided to do a full recap of the crossover. The date on the board is February 1, 1965. Did a recap this...
    • Zeus12
    • Thread
    • fisher xp-7 recap
    • Replies: 13
    • Forum: Speakers
  2. JonyQuest

    Luxman L-30 idle adjust problem

    Hi there, been browsing threads on this forum the other day and saw a lot of enthusiasts for the Luxman L-30 and some pretty knowledgeable people here. I'm a proud owner of the Luxman L-30 that i bought 10 years ago, this year it started failing on me though. Lots of distortion in the right...
  3. goldswimmerb

    Technics SB-6000A Restoration?

    Hey guys, so I recently picked up a set of technics SB-6000A off of a guy for $100. He also had a Marantz 2285B listed for $50 but by the time I contacted him, that was long gone. They're not in too terrible shape: Im planning on cleaning up the cabinets and drivers and getting that dust cap...
  4. Super Noob

    Project: Yamaha CR-620 (Rebuild)

    Now on to the 2nd on my non-working Yammies. CR-620. Typically stay away from the lower WPC units = but it was essentially like a BOGO deal relating to their non-operational status - then add in discrete outputs and plenty of good things said about the 620, so I am in. Guess it needs to be...
    • Super Noob
    • Thread
    • cap list cr 620 cr620 rebuild recap transistor list
    • Replies: 22
    • Forum: Yamaha
  5. G

    Minor CR-1020 Restoration

    First, here is the finished product: Here is the unit the day I bought it. I got it off a guy from Facebook Marketplace for $100. It turned on but wouldn't play any sound. It was a bit grimey and had a few dents in it but it was in good condition otherwise. Lots of grime... A few...
    • Greyfixer
    • Thread
    • cr-1020 recap restoration yamaha
    • Replies: 10
    • Forum: Yamaha
  6. S

    Sansui Au-717 - repair help: recap of Board F2721 and protection issue

    I have a Sansui AU-717. Due to age and concerns over glue, I have undertaken a recap. Prior to recap, the unit worked. It did take awhile to power on (~10 sec) but was otherwise in good working condition. I started the recap with board F2721 and this is the only board I have touched so far...
  7. dlucy

    Recapping and restoring and upgrading a Heathkit AR-1515 receiver

    One of our outstanding local AK'ers, @nj pheonix , asked me to recap and restore his monster-of-a-receiver Heathkit AR-1515. It is quite a beast, lots of power, an unusual design (on the inside), has the rare Dolby FM card, and was a lot of fun (read as "learning experience") to work on. This...
    • dlucy
    • Thread
    • heathkit heathkit aa-1515 heathkit ar-1515 recap recapping restoration
    • Replies: 200
    • Forum: Solid State
  8. david winter

    1060 - Can't get half voltage at output caps

    Hi, I have done this model more than once and don't understand the problem. It's fully recaped as usual with Nichicon / Elna. I replaced all 2SC458/1000 on the phono stage, as well as both 2SD438 on the output board (the two new ones I have in stock have a gain of 152-155 so no idea if this is...
  9. goldswimmerb

    Marantz 4300 R744 smoking

    Hey guys, so I have a Marantz 4300 I'm currently working on, I swapped the 2SC458s in the amp board to KSC1845s and everything seemed good so I went on to recap the board and get rid of the VD1212s. I went wring somewhere apparently as R744 seems to be going up in smoke. Any ideas why? Pics...
  10. Super Noob

    Project: Yamaha CR-820 (Rebuild)

    About a month ago... was able to pick up two CRs - both were non-working. Have much gear and only Yammie was a DSP-A1 (beefy) which was included with a purchase of some Infinity RS-IIIb. I really liked it, but I moved it down the road to keep with the silver theme. These were in...
    • Super Noob
    • Thread
    • cr 820 cr-820 cr820 rebuild recap
    • Replies: 73
    • Forum: Yamaha
  11. Isaac C.

    Hitachi HA 610 Recap - Elna Silmic vs Nichicon Gold?

    Hello everyone, I just acquired a Hitachi Ha 610 with the intention of recapping it. Of these, which series is best for the signal path? I plan on using Nichicon LKS for the 12000 mf 63v filter caps. Also could I increase the capacitance and voltage for the filter caps? If there is another...
    • Isaac C.
    • Thread
    • capacitor elna filter capacitors hitachi hitachi ha-610 nichicon recap
    • Replies: 60
    • Forum: Solid State
  12. dlucy

    Recapping and repairing a Harman Kardon 730 twin power series stereo receiver

    @sfox52 asked me to recap his hk 730 twin series and since finishing that last week, someone else is asking for the recap BOM, so I'm posting that part quickly here and I'll fill in the details and the input-panel-repair and ps-for-LED-pointer-replacement goodies when I have more time. Index to...
    • dlucy
    • Thread
    • bom harman kardon 730 hk730 recap recapping
    • Replies: 349
    • Forum: Solid State
  13. goldswimmerb

    Another cheap Marantz 2270 (this ones gonna be fun)

    Hey guys, so figured I'd document my fun that I'm going to have with my recent acquisition of a "for parts" 2270 from ye olde evil bay site. According to the seller he started recapping it, then ran out of time to finish it, although my bet is that he messed up somewhere and gave up. Apparently...
  14. Kreshna

    Solen caps in NHT SuperZero make trumpet sound harsh and ear-hurting

    About two weeks ago (September 15, to be exact) I replaced the crossover capacitors of my NHT SuperZero with Solen caps. I noticed the overall sound became less grainy and more fluid, especially cymbals and hi-hats. My wife is not an audiophile, so she doesn't understand audiophile jargons like...
    • Kreshna
    • Thread
    • burn-in capacitors kreshna aryaguna nurzaman nht superzero recap
    • Replies: 234
    • Forum: Speakers
  15. goldswimmerb

    Marantz 2250B rebuild thread

    Hey guys, figured I would post another rebuild thread since they seem to be taken well. Today's thread is for my ongoing project of a 2250B I got off of that one auction site listed as a parts unit, which is always fun. My goals for this unit are to get any known bad transistors out of there...
  16. AlexHempel

    Partially complete Sansui Six repair and restoration (with pictures!)

    Greetings AK, This is going to be a very long post (scroll down if you just want pictures). I was looking for a project over the summer and decided to restore a Sansui Six. People on AK and elsewhere seemed to agree that the Six is a well-built, warm-sounding receiver, which is exactly what I...
  17. P

    Harman Kardon Recap

    I have a HK870 power amp which I purchased new about 32 years ago.Physically the amp is in excellent condition and I currently use it to power a second zone in my home. It just doesn't sound as open or clear as it once did. A year or so ago, I replaced the input coupling caps, thinking that...
    • Prudent
    • Thread
    • amplifiers harman kardon hk hk870 recap
    • Replies: 13
    • Forum: Solid State
  18. Super Noob

    Project: Kenwood KR-8050

    Yet another project for rebuild. The candidate is a KR-8050. Have rebuilt a couple of the KR-8010s in the last year or two. The KR-8050 is touch newer. It was found with a busted bass potentiometer, dirty, and knobs surfaces less than perfect. Saw one of the years before and when this...
  19. 0

    which vintage receiver to refresh? Sansui 331, HK 630, Nakamichi RE2

    Hi Folks, Please help me choose which receiver to refresh. This would be for my daughter's stereo. The Nak has a hum in the tuner section but works fine otherwise. The others are working with no obvious malfunction but i assume they would be much improved if refreshed. I like the...
  20. Bluefisheye

    Marantz 2270 restored

    After few weeks, I just finished to restore my Marantz 2270. I recapped all capacities, replaced several transistors, diodes, blue switch, speaker relay and relamp all bulbs, lamps. At the end, I had a problem with popping crackles in the right amp board and without the volume potentiometer...
    • Bluefisheye
    • Thread
    • 2270 crackles marantz popping noise recap restoration
    • Replies: 12
    • Forum: Marantz Audio
  21. goldswimmerb

    NAD model 200

    Hey guys, just wanted some general thoughts and to see if anyone had the service documents for this unit. Definitely a heavy unit, and doesn't look too hard to take apart. I just picked one up and would like to replace the small capacitors that like to go resistive, however I don't seem to be...
  22. P

    How do your Norman Labs model 8 sound?

    Hi, I've had these speakers for some time and they always bothered me a bit with very emphasized highs and rolled off mids. It's not that they sound like crap - just highs are very "present", bass is "just right" while the midrange is a bit withdrawn. I am asking myself the question if that's...
    • P. S.
    • Thread
    • norman labs recap speakers
    • Replies: 8
    • Forum: Speakers
  23. goldswimmerb

    Marantz 250M help

    Hey guys, I recently acquired a working Marantz 250M, it appears to ll be original, I would like to upgrade it as per the service bulletins. What is recommended to make this amplifier more stable, as I have heard of the 250s being "conditionally stable". This unit appears to be a later model as...
  24. S

    Stereotech 1200 - Hum in both channels

    I have a Stereotech 1200. Over the winter it developed a hum on both the left and right channels. Hum is present: with no sources connected on multiple outlets and house electrical circuits on multiple sets of speakers and wires regardless of 2 prong plug orientation (again tested on...
    • special_20
    • Thread
    • hum power supply recap stereotech stereotech 1200 trouble shooting
    • Replies: 15
    • Forum: Solid State
  25. Super Noob

    Project: Marantz 2270

    https://drive.google.com/file/d/16I55F1d64iaTnUjbR8JLqRBnqPeWSp2d/view?usp=sharing (build details - list) Completed this rebuild a few months back... just getting around to sharing the process (before I am too far away from it). Not the easiest unit I have rebuilt / restored for sure. Not...
    • Super Noob
    • Thread
    • 2270 cap list marantz marantz 2270 rebuild recap recap list
    • Replies: 28
    • Forum: Marantz Audio
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