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restoration

  1. F

    Volume pot disassembly

    Anyone have any experience tearing apart a marantz 2238b or similar volume pot for a thorough cleaning? I can’t get a dead spot out of the pot by simply using deoxit through the opening. I have the pot removed from the board and the back metal cover removed on the pot. But it looks like the...
  2. D

    2245 p800 problems

    Aloha AK, I was 96% done with a full recap of my 2245 with no problems. Phono board, preamp, and both power boards all done with no shorts on DBT, audio in both channels. I adjusted the idle current and DC offset on both boards just fine. I got to the main power p800 board, recapped it, good on...
  3. Will_Emanuel

    Kenwood L-07M Major Restoration with BOM

    Hi all, it's been a while since I've finished this restoration project, I'm just now finally getting around to documenting all the work I've done on these wonderful amps. I will attach a comprehensive BOM to this first post that documents every part I used with component references to match the...
  4. J

    Sansui au 11000a - smoking resistor - please help!

    Hi everybody, This is my first post hoping to get some assistance. I managed to got hold of a beautiful sansui au 11000a which worked ok but was a little bit noisy and perhaps not as crisp as I would have expected. Based on my readings on this forum, I thought I would attempt a basic...
  5. S

    Sansui Eight Bass

    I recently acquired an excellent condition Sansui Eight and was very excited to fire it up once I finally found a power cord after hearing all the rave about how great this receiver is. To my disappointment I was shocked when I fired it up and it simply paled in comparison to my Sansui 2000x and...
    • SSTPIERRE
    • Thread
    • bass classic receivers marantz onkyo pioneer restoration restore sansui sansui eight yamaha
    • Replies: 6
    • Forum: Solid State
  6. Connor G

    Sansui AU-717 Restoration and Upgrade

    Hello fellow AKers! I just finished a comprehensive restoration of a beautiful Sansui AU-717. This thread is dedicated to showcase the steps I took during the restoration process. There will also be a video posted to my YouTube Channel showcasing the work I did there. Once it is uploaded, I will...
  7. Drakevinyl

    JBL 4311 Speaker Insulation Mold?

    I just recently got a pair of JBL 4311 speakers off Marketplace for $50, the cabinets are really beat with a good bit of damage (a sizable chunk missing from one and a bit of warping on the other) but the drivers are pristine and they sound amazing. I took them apart the other day to see the...
    • Drakevinyl
    • Thread
    • insulation jbl jbl 4311 mold repair restoration speaker advise speaker cabinet speaker inspection
    • Replies: 21
    • Forum: Speakers
  8. j chauvin

    Levinson (Madrigal) No. 2X series faceplate finish

    Does anyone know if Levinson face plates from the No. 2X series were anodized or painted? I have some wear and wondering the best avenue to go for restoration. Thx, j
    • j chauvin
    • Thread
    • faceplate levinson madrigal restoration
    • Replies: 1
    • Forum: Solid State
  9. nasinn

    JBL L65A restoration

    Hi all, This is my first post here on Audiokarma and I am looking forward to hearing your thoughts on this. Late last year I acquired a set of L65As in goodish working condition, the cabinets were a bit rough around the edges so I did the following to get them living room worthy (from a looks...
  10. Kelso1

    Restoration/repair services for Technics SL-7

    I'm located in the Kansas City area and looking to have my turntable repaired. It has operated faithfully with minimal needs. Recently, I'm having a random skating issue. I believe it's time to have this 40+ year old unit freshened up. Do any of you have recommendations on a top quality facility...
    • Kelso1
    • Thread
    • restoration service sl-7 technics
    • Replies: 6
    • Forum: Turntables
  11. U

    Marantz 2015 main fuse blowing

    Hi all! Long time lurker, first time poster here. I recently got a pretty worn Marantz 2015 (with wood case) for 50$. Main fuse (on the back) keeps blowing on power-up. I found that the output transistors were blown, so went ahead and replaced those to no avail. Still getting blown fuses. Any...
    • UsedChaps
    • Thread
    • baby marantz fuse marantz marantz 2015 repair restoration
    • Replies: 14
    • Forum: Marantz Audio
  12. jFF_Bulbo

    SANSUI 790 HELP!

    Hello! I recaped a 790 sansui, don't working before recap. Now relay clicks, DBT show no shortcut, unit sounds Bad and once the volumen reaches 35-40%, distorsion is really Bad and finally relays click and sound go out. Dc offset is ok, about 3+5 mv, but bias is 45V!!!! On test point 5-6 & 5-7...
  13. richiem46

    Starting my first 2325 Restoration and Looking for Guidance

    I just acquired a decent 2325 on the big auction site with the wood case. I received it several days ago and my first reaction was I could not believe how heavy the thing was! Even after removing the heavy wood case it is still a beast to move around the bench. The seller said the unit worked...
  14. seifreit

    QLS-1 - The King is dead, long live the King

    PART 1 - A Rare Find I am starting this thread to document my restoration journey with the QLS-1s, pair 1420/21. For this first post of many I will give a little background as to the acquisition of them. I was looking through FB Market Place as I do several times a day on the lookout for...
  15. James Cox

    Scott LK-150 restoration thread

    Hey everyone! Ive finally decided to do a full restoration thread from start to finish after scoring a good deal on a Scott LK-150. I've ordered the parts and have most of them on hand but still waiting for some stuff from Jim Mcshane. The amp came without any tubes but I've got some lined up...
    • James Cox
    • Thread
    • 6550 diy lk-150 power amp restoration scott tube
    • Replies: 76
    • Forum: Tube Audio
  16. pioneervibes

    Help refurbishing Sherwood 7100A

    I was able to snag a cheap Sherwood 7100A after reading a ton of positive reviews about it on AK. It has a very weak left channel (seems to be common), so I decided to use that as my motivating factor to replace everything I can for my first project. Although, I've run into a few issues that I...
    • pioneervibes
    • Thread
    • recap refurbish restoration sherwood
    • Replies: 23
    • Forum: DIY
  17. C Hart

    L166 Horizon new owner

    I got a pair of fair condition L166 that are in great shape acoustically. I will be restoring them slowly over time. The grills have the usual dings and also as usual are resistant to any fix I know of. Anyone have experience or advice in repair/refurbishing/replacement of these?
  18. C Hart

    Rehab for speakers with hard miles - JBL L166

    Hi all. I have been freelancing on pandemic speaker rehab. I really enjoyed it, but had mixed results. (The speakers' appearance generally improves at least.) My most recent project, E-V Interface:As, is almost done and has been quite a chore - rebuilding damaged particle board with injectable...
    • C Hart
    • Thread
    • cabinet repair e-v interface a jbl l166 restoration
    • Replies: 25
    • Forum: Speakers
  19. SteveHammond

    Denon DP – 61F

    I have one of these currently in the queue to be restored, it is completely unwired and apart. It has a possible bad Denon I see controller I see I should say. If anyone knows anyone of these and can help me possibly get this thing back together and working properly it would be a wonderful and...
    • SteveHammond
    • Thread
    • bad denon controller ic. denon dp dash 61f restoration
    • Replies: 4
    • Forum: Turntables
  20. E

    Anyone have the Paradigm Active 20 Schematics?

    Hello, so I found a pair of Paradigm Active 20s off the curb and thought that they would be some nice speakers to add to my collection. Once I got home, and plugged them in, I was immediately greeted with static. Once I quickly pulled the plug and removed the amplifier, I was immediately greeted...
    • Eafnb
    • Thread
    • paradigm repair help restoration speaker repair/troubleshooting
    • Replies: 0
    • Forum: Speakers
  21. D

    Please recommend someone for Au-717 restoration

    Hello! I have an AU-717 and TU-717 (not sure what to do with the receiver). I am looking for someone with a good reputation to restore my amp. Some of the names I have found appear to be in quite old threads, or out of business, or don't specialize in Sansui. One candidate (name withheld) looks...
  22. moodyj2000

    Beginning my 400 Restoration

    I am a tool guy and I like to tinker. Not an expert but willing to learn. Recently picked up a Tenma 72-455a Signal Generator, Tektronix 2205 Oscilliscope, Tripp Lite Isolation transformer, Staco Variac and a couple of 8 Ohm 100 watt dummy loads from Parts Express. I had already built a DBT...
  23. J

    DISTORTION BOTH CHANNELS NAD MODEL 200

    First of all I wanted to thank the work done by all the members of the website, it really is very helpful for people like me who are just starting out in this world. I hope someone can help me with my model 200 NAD amplifier. The amplifier has distortion in the two channels, I changed 3...
    • Joan Biel
    • Thread
    • 2sd438 distortion nad repair restoration transistor
    • Replies: 3
    • Forum: Solid State
  24. Leestereo

    Leestereo's Restoration/Upgrade of a Sansui AU-719

    A little while ago (Fall, 2020), AK member @Phineas69 brought in a very nice AU-719 for a complete restoration and upgrade. PART 1: HEAD AMP CIRCUIT BOARD (F-3095) The F-3095 board contains the Head (Phono) Amplifier for moving magnet cartridges. Signal Path Components: In each channel...
  25. Aud10file

    Sansui AU-919 Restoration

    A few months ago, @Vintagear pinged me, regarding an AU-919 on CL that looked amazing in the pictures. He knew I’d been looking for a good condition 919 for a long time. We immediately sped to the seller’s location. I drove and @Vintagear held on for dear life. LOL. The seller was an older...
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