• 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

rebuild

  1. klamsoss

    A 2330B rebuild

    I have this monster of a receiver on the bench now (still need to tidy up the clipping on the 1060, but it's pretty much good to go) and am preparing to tear into it. My goal is to replace all the electrolytics, set whatever levels need to be set for best performance within the pre and power...
  2. Isaac C.

    Magnepan MG-1 Rebuild Questions

    Hello everyone, a friend just gave me a pair of MG-1s that need rebuilt because they have the usual rattle. After viewing a lot of rebuild threads from various forums, I keep seeing the recommendation to use DAP Contact Cement instead of 3M Super 77. I've seen some people use both and others...
    • Isaac C.
    • Thread
    • maggies magnepan mg1 planar speakers rebuild
    • Replies: 15
    • Forum: Speakers
  3. goldswimmerb

    Phill's 2252

    So I said I would make a thread for this, just getting around to look at it. Never seen one with quite this issue, amp board looks like it got very very toasty. There's melted plastic on the top above the amp board: And the plastic caps on both main filters are rounded from heat, and there's...
  4. Mikethenewb

    Marantz 2245 Rebuild Help - Central, VA

    Hello all, I have gotten about halfway through completing my Marantz 2245 rebuild using the I Rebuild Marantz rebuild kit (link below). I am looking for someone who can finish the job for me as I do not feel I have the technical skill to do the rest of the job. Please let me know if you could...
    • Mikethenewb
    • Thread
    • #marantz rebuild repair
    • Replies: 10
    • Forum: DIY
  5. 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
  6. goldswimmerb

    Marantz 4300 Partial-Rebuild thread

    Hey guys, so as many of you have been aware I have been working on a 4300 (or two) for the last few months. Its been and adventure and a learning experience, and I am extremely grateful for the wonderful help I have received from various forum members. I figured Id keep making new rebuild...
  7. Photoboy92

    Heathkit AS-101 Rebuild

    Hello just joined the community and want to thank everyone for all the shared info I've gleaned already... Hope I'm posting in the right location for this- and I apologize if I have so many questions as I'm a bit of a newbie I recently acquired a pair of Heathkit AS-101 cabinets that were...
    • Photoboy92
    • Thread
    • 808-8a altec lansing h-811b heathkit jbl rebuild
    • Replies: 2
    • Forum: Speakers
  8. 4

    New to AK, have some speaker woes and need advice

    Ok, needed garage speakers as I spend a lot of time there and bought a yamaha receiver/amp from some CL guy who worked on speakers and loved JBL. A year later I have a cheapo set of JBL's, L100s, L40's, L88's (need help) and L150's (really need help) Learned about buying speakers in the dark...
    • .45Cole
    • Thread
    • blown cabinet jbl rebuild recone
    • Replies: 5
    • Forum: Speakers
  9. 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
  10. goldswimmerb

    Marantz 2230 rebuild

    Hey guys, so I got a Marantz 2230 from a guy to do a rebuild of the audio path. So far when testing I've noticed that one channel has much more bass than the other. It's made worse by the bass potentiometer which leads me to believe that it's a preamp issue. Could it be the 2SC1000s in the...
  11. 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...
  12. S

    Sansui 7070 popping, dumping audio temporarily

    I've replaced fusible resistors on the driver board, replaced all the electrolytic caps on the driver board except for the 470uf caps (C05 and C06) and I've also replaced all the caps on the power supply board except for the 10 uf caps (also C05 and C06 on this board) (somehow I overlooked these...
  13. 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...
  14. 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
  15. Mike Sweeney

    Pot Notes, not that kind.. The Marantz kind

    So I replaced a very hard to find balance control on my 2285B and decide to explore the old one. It didnt work well, the right side would cut out and all kinds of noise when turned even after DeOxit, cleaner and Shield. What I found was you could see the ohms resistance jump around when you...
  16. Mike Sweeney

    My 2245 is Finished

    Finally got her done this weekend :) Its been a road.. all new final transistors, rebuilt both amplifier boards ( saving the new PWBs for a complete to bare metal build in the future), all new caps, relay, partial new wiring, new pots etc..etc..etc. And boy she sounds good. I think she will...
  17. J

    Altec Lansing 845B

    I've read and used AK for years but today is my first post so yay! :D I saved an Altec Lansing 845B "The Verde" from going to trash at my school (there used to be an old radio station on-site). I can find no information on the 845B online other than it's super close to the 835 due to the...
  18. Super Noob

    Project: Pioneer SA-900

    Picked up an older Pioneer AMP. It is an SA-900 with cap coupled outputs. Works but needs some love on push buttons switches (sticking) - I have them working albeit not ideal yet. The plastic housing was broke and they wouldn't latch. Working - but anyways, I just wanted to know if any of...
    • Super Noob
    • Thread
    • pioneer sa 900 pioneer sa-900 rebuild recap list sa 900 sa-900
    • Replies: 43
    • Forum: Pioneer Audio
  19. KNielsen

    Acurus P10 phono stage mod/rebuild

    Hey AK I'm planning af full rebuild on my Acurus P10. One thing I've learned from my earlier amp project https://audiokarma.org/forums/index.php?threads/acurus-a250-and-starground.815860/ is that I'll prepare better this time:)... Meaning I wouldn't have to wait for new parts constantly, but...
    • KNielsen
    • Thread
    • acurus acurus p10 aragon aragon 47k mod rebuild
    • Replies: 31
    • Forum: Turntables
  20. J

    Advent Baby II's gut and rebuild recommendations

    I’m new to this speaker audiophile forum and new to the speaker rebuild/build world. I just recently decide to rebuild my 25 y.o. Cerwin Vega L-7 bookshelf speakers. Their new sound is amazing. Never thought I would get such great sound from these old CV’s. I ended up gutting them so there is...
    • jh90731
    • Thread
    • advent baby ii rebuild
    • Replies: 3
    • Forum: Speakers
  21. MakingWaves

    Cosmetic tube amp chassis upgrades

    I'm interested in modernizing the tube chassis of my Allen 90's I'm open to various treatments and as I could not find any thread on this process I made one. Here is a photo of my amps. Please let me know if you have any positive thought to help with this project. Thank you. Marcos If you...
  22. Super Noob

    Project: SX-1250 (2nd Take)

    The sickness continues: VK = November 1975 (early unit) VK3900089K Thinking this is an early unit... unless I am wrong - maybe the within the 1st (100) made? My other unit is July 1976. Once I unload some of other units = I will get into this thing full bore. It has broken AM antenna...
    • Super Noob
    • Thread
    • rebuild restoration sx 1250 sx-1250 sx-1250 restoration sx1250
    • Replies: 74
    • Forum: Pioneer Audio
  23. Sci525

    Overhauled AU-101, right channel failed after 20 min

    Hi everyone, I overhauled my 1971 AU-101 yesterday. New electrolytic caps, small transistors, and power supply diodes (transistor substitutions below). Sounded good for 20 minutes before the right channel went out. Turned it off and back on and the right channel was on for 5 min before going...
  24. A

    Fisher 500C Rebuild

    I am amateur trying to rebuild my old (1965) Fisher 500C stereo amp. I have two of them and I used tubes from one to get the other working after many years. The sound is fuzzy and the stereo beacon doesn't light when I tune in stations, which might be in part an antenna thing. But I was...
    • Audio Murphy
    • Thread
    • 500c rebuild sound quality stereo beacon
    • Replies: 2
    • Forum: Fisher
  25. Spotopolis

    Looking to possibly Frankenstein 2 pairs of bookshelfs into a single pair

    I have a pair of Aiwa SX-780's and a pair of MCS 683-8224-20 (2-way) speakers. They have been sitting in the garage for about 2 years or so. I picked them up on CL a while back for cheap. The foam and speakers are good, but I believe the crossovers need some work. I hooked them up when I first...
    • Spotopolis
    • Thread
    • 8224 aiwa diy frankenstein mcs rebuild sx-780 sx780
    • Replies: 6
    • Forum: DIY
Back
Top Bottom