• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

restoration

  1. Ronito6

    IDK video - The company that officially offers parts and service for vintage Sansuis

    ...and they make little to no profit doing it. While taking another stab at locating an AU-X11 service manual I was lead to this video. It was produced by NHK World and is used for English language education. So it is a bit odd and not very polished in many ways...
    • Ronito6
    • Thread
    • parts restoration sansui schematics service service manual
    • Replies: 25
    • Forum: Exclusively Sansui
  2. jozeppy26

    Original Large Advent Restoration

    About one month ago I picked up a pair of original large advents for $10 (these are the walnut veneer ones with beveled front edge). Before you praise me too much on this deal, only 1 is a complete cabinet. The other cabinet is missing both drivers and beige grill cover but at least has the...
    • jozeppy26
    • Thread
    • advent advent loudspeaker advents large advent ola original advents original large advent restoration restore vintage
    • Replies: 11
    • 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. Ronito6

    Sansui AU-X11 crowd sourced service manual.

    Procedures and other data - start Procedures and other data - end The service manual (SM) for the Sansui AU-X11 has eluded my and everyone's (even boffins here in Japan) best efforts to locate.So I think that it is past time that an information collection point be created to accumulate any and...
  5. Mr. Yamaha

    The restoration of a Yamaha CA-2000 (Japanese CA-2010)

    @Oilmaster decided to sell me one of his CA-2000's :angel: It needs a full restoration, so this will be my second big project. Nice project for winter times. It's completely original and untouched. Some pictures:
    • Mr. Yamaha
    • Thread
    • 100v ca-2000 ca-2010 restoration restoration project yamaha
    • Replies: 122
    • Forum: Yamaha
  6. delboyko

    Sansui AU-717 by leestereo's recipe (yet another)

    Hi folks, new member here... from Croatia. I've got my self into this in February when the Thing arrived. I bought it off ebay, quite accidentally, with unconfirmed working condition. Pictures looked fine so I sent an offer (250€) and the seller accepted. Lucky me. I read so much about AU-717...
  7. Homer4beer

    Technics CD-4 (Quad 4) SS-2900D find - face restore?

    Hi guys, I came across this in my local classifieds and couldn't resist picking it up for $50 Aus. It's a Technics CD-4 system dating from 1972 purchased from the original owner. Apparently these are very rare? The speakers and timber work of the cabinets (all bar the missing strip on the amp...
    • Homer4beer
    • Thread
    • cd-4 quad restoration technics turntable
    • Replies: 6
    • Forum: Turntables
  8. dlucy

    Harman Kardon hk870 power amp restoration

    I finally got to the hk870 sitting in my to-do stack and couldn't remember what was wrong with it when I bought it. The kind AK'er who'd sold it to me said "well, the transformer was delivering power but it wouldn't turn on" when I sheepishly asked "do you remember why you sold it?" Ok, no...
    • dlucy
    • Thread
    • harman kardon hk870 restoration
    • Replies: 13
    • Forum: Solid State
  9. 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...
  10. 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...
  11. J

    Yamaha CA-800 - restoration - few questions

    Hi, I got this Yamaha. Decided to do basically full restoration. Now I read that the two microswitches for ClassA/Normal operation are a weak point and it's a good idea to change them. What exactly do they do? I can see red and orange cable coming from the transformer. Red brings 30V, Orange...
    • Janochytron
    • Thread
    • class a restauration restoration yamaha ca-800
    • Replies: 29
    • Forum: Solid State
  12. 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
  13. M

    1974 Janszen z40 Speaker Restoration

    Hi everyone. I recently acquired a nice pair of Janszen model z40 electrostatic hybrid speakers. These were made in 1974. They actually retailed for a whopping $4000 in 1974 according to several different sources. This roughly equates to $21,000 if you factor in inflation. There is...
  14. audiodummy

    Restoring indicator dot on knobs

    While trying to clean some metalized plastic knobs in a restoration attempt of a Heathkit stereo with some isopropanol to remove dirt on them, I didn't realize the alcohol also removed the black dot indicating position of the knob... Doh! For now I just used an indelible marker and placed a dot...
    • audiodummy
    • Thread
    • cleaning knob restoration
    • Replies: 9
    • Forum: DIY
  15. Thereimade12

    Infinity Qb Cabinet Restoration

    Hello everyone! Long time no post. If you have the time I beseech the advice of Infinity Gurus everywhere. I have been very fortunate to pick up a pair of Infinity Qb's for a reasonable price locally. Even more fortunately the diaphragms of the EMIT Tweeters have already been replaced! A...
  16. QSilver

    QX-949 Adventures

    Some time ago now, I picked up a saved QX-949 from a fellow member on audiokarma. When I got it, it seemed to be working pretty well except channel 4 (rear right) was dead. I figured it was likely a bad transistor. Anyway, I got to looking at today. After a lot of trouble shooting and reworking...
  17. Tigerpaw07

    Wiring Question

    Hello All, Is there any benefit to running the main speakers through a powered sub woofer and then to the receiver rather than directly into the receiver? I have an odd mix of restored vintage and new audio equipment but it works for me and sounds good to my ear. The receiver is a new Denon...
  18. CDinMB

    Repair or restore MC40?

    I bought this MC40 as a restore project but end up using it while I refurbed my MC30s. Well, that is done and they are great but I now have an MC40 that is cosmetically pretty sad. I am torn between just replacing the electrical components that need a refresh or doing a full cosmetic...
  19. Ronito6

    Rare reed relay substitution ( a visual how to )

    In the past here on AK I've asked about possible substitutions for this Hitachi 24V reed relay . Although there were a couple of what I am sure were good suggestions, there was nothing easily get-able for me until I saw this today. Well it seem some good chap here in Japan who goes by the...
    • Ronito6
    • Thread
    • au-919 au-x1 head phones part needed parts list parts sources reed relay relay repair restoration
    • Replies: 39
    • Forum: Exclusively Sansui
  20. Bert 1100

    Started restoration on my CA-810 !

    I always wanted one of those, and when one came up on our local auction site, I had to get it... It came in one piece despite a poor packing job, and it was working well, but with the usual contact noises and such. What is not so nice is the smell that it gave off, a mixture of tobacco and moldy...
    • Bert 1100
    • Thread
    • restoration yamaha ca-810
    • Replies: 71
    • Forum: Yamaha
  21. sjfloat

    MC30 Restoration - Filter Caps

    What's the best practice for filter cap replacement? I'm also considering an incremental approach, e.g., using axials inside as part of getting it functional and then buying new cans later.
  22. sjfloat

    MC30 Restoration -- Preservation First! (and caps)

    Oh my... I have a couple of MC30s to restore. I don't know when I'll get the opportunity to dive into this. But looking in on them, I was appalled at the extent to which they had degraded. I live in a relatively humid region and my first concern is to clean up the exteriors and take whatever...
  23. FRANKRAUSE

    Mystery Knobs

    Hi everybody, I've been trying to track down some knobs for a restoration, and I can't seem to find any information or suitable replacements. The knobs are black anodized aluminum, and they're 7/8" x 5/8" or 21.75mm x 16mm. They have a single setscrew and are made to fit a 1/4" shaft...
    • FRANKRAUSE
    • Thread
    • fixing knob parts project reciever restoration stereo vintage
    • Replies: 3
    • Forum: Tuners
  24. Leestereo

    Leestereo's Restoration/Upgrade Of A Sansui AU-7500

    A nice Sansui AU-7500 was on the workbench for a complete restoration and upgrade. The restoration/upgrade plan included the following: 1. Replace all power supply electrolytic capacitors with low ESR types (increasing capacity where appropriate). 2. Replace all of the signal path polarized...
  25. dlucy

    Basic recap and restore BOM parts list on Kenwood KA-4002 integrated amp

    Performed a recap and basic restoration on a small Kenwood integrated amp KA-4002 and it sounds great. The KA-4002 has a cap-coupled output, so it has a warm sound kinda like tube gear and very much so the "1970's vintage sound". All electrolytic caps and "noisy" small signal transistors...
Back
Top Bottom