• 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. Mitch88

    KOSS HHV-LC refurb questions

    I opened myHV1's to use some Deoxit F5 on the fader and discovered issues. A) - The thin piece of brown foam around the fader turns to dust if touched. B) - The driver magnets in the nylon housing seems to be plastic "welded" in place. C) - There is some sort of white debris on the opposite...
    • Mitch88
    • Thread
    • headphones koss rebuild refurb refurbish repair
    • Replies: 8
    • Forum: Headphones
  2. K

    How to fix your micro seiki air pump (from someone who did it)

    MICRO SEIKI AIR PUMP REPAIR I have an RX-1500, but this information is applicable to any Micro Seiki air pump for any model. First a discussion on how the various turntables that originally came with an air pump work. Some models have an air bearing that when properly pressurized enables to...
    • Ken Guard
    • Thread
    • air fix micro pump rebuild repair seiki
    • Replies: 4
    • Forum: Turntables
  3. dostrye

    Any Dual service people out there on the West Coast?

    Hey everyone! I have a Dual 1219 turntable that I am trying to get serviced, and I would like to keep this work on the West Coast. (I live in the Seattle area). I am the second owner of this turntable, and it is in pristine shape. I am looking for someone experienced with the Dual 1200 series...
    • dostrye
    • Thread
    • dual dual 1219 rebuild service west coast
    • Replies: 12
    • Forum: Turntables
  4. mike_drop

    Dumont/Emerson consoles- trash or treasure?

    Hi all, In advance, I appreciate your willingness to read this thread and provide any input you may have. I have recently acquired a Dumont 526 Custom Collector Series Multi-plex Stereo HiFi AM/FM/Phono console. What a mouthful! I’m curious to know what I have. Not as concerned about what it’s...
    • mike_drop
    • Thread
    • dumont 526 emerson garrard at6 mark ii rebuild record cabinet record console
    • Replies: 17
    • Forum: Tube Audio
  5. MBuras

    My Experience with Rebuilding a Marantz 1200 Integrated

    I posted here a while back that I was looking for what many considered to be the best, or their favorite, Marantz integrated amplifier. Most of the results came back either 1060 or 1200. I bought a 1060 and did an extreme rebuild on it. While I liked the general sound of it there was some oomph...
    • MBuras
    • Thread
    • 1200 amplifer integrated marantz rebuild restoration
    • Replies: 29
    • Forum: Marantz Audio
  6. ekimezeerf

    CA-800 Bias Problems After DOA Rebuild

    Hey everyone, long time lurker, first time posting. A friend brought me a dead CA-800, would not power on and many signs of heat stress on main amp and power boards. Our thought was the PO has dumped a bottle of cologne on it due to it's aroma and the goop present everywhere inside. I've...
    • ekimezeerf
    • Thread
    • bias bias adjustement ca-800 rebuild yamaha
    • Replies: 23
    • Forum: Yamaha
  7. Super Noob

    Project: SX-1250

    The sickness continues. Getting into a 1250 that I picked up recently. 2nd owner had it for 25 years = ~1993. Here is what I found = looks as if it has never been opened. All the lamps look original and were working. Need of a good cleaning - working through that now. It adjusts outs...
  8. Johnny_Law

    Odd Problem H/K 330B: Left Channel VERY Weak SOLVED

    Eventual solution: Bad solder job on one replacement transistor! Problem: Weak (barely audible) left channel. Constant regardless of input source Also weak channel through headphones Work already completed: Rebuild of Control Amp and Main Amp circuit boards De-oxit of all pots and switches...
    • Johnny_Law
    • Thread
    • 330b channel diagnose harman kardon rebuild
    • Replies: 40
    • Forum: Solid State
  9. Mike Sweeney

    2285B just about done 95%

    So I'm at the very end with just a few odd things left. I have some wires I need to unwrap and re-wrap/solder because of corrosion. I didn't see the itty bitty board for the main bank of switches with it's four or five caps so I need to pull the tone board out. again.. and do that plus clean up...
  10. Golanr

    Marantz 2275 Recap & more

    A few weeks ago I completed a recap (and much more) of a Sansui G-9000DB, following an issue with the left Channel. http://audiokarma.org/forums/index.php?threads/g-9000db-distorted-sound-on-left-channel.810653/ I've decided that it's time for a recap of my 2275. I plan on documenting this...
    • Golanr
    • Thread
    • 2275 blowing fuse bourns no radio rebuild recap wima
    • Replies: 36
    • Forum: Marantz Audio
  11. KNielsen

    Acurus A250 and starground

    Hey Ak I'm restoring my Acurus A250 and at the same time making some mods, this includes new starground curciut. I'm splitting input and feedbackground (now they share same ground at input), but what about D3/D6...??? I parallel a 4,7uf/470nf cap over these for lower noise, but should I also...
    • KNielsen
    • Thread
    • a250 acurus acurus mod diode feedback ground input mod rebuild starground
    • Replies: 908
    • Forum: DIY
  12. Scott75s1974

    Scott R75s rebuild questions

    Hi, I’m rebuilding my Grandfather’s Scott R75S from 1974. I’ve had it for about 30 years. Used it intermittently up until about 8 years ago. ***I’ve read a lot of posts but haven’t found any general newbie refurb FAQs. So if I’ve missed that, please direct me there.*** It’s symptoms at last...
  13. Johnny_Law

    Yamaha YP-D6 Pulsing Speed - Rebuilt - Parts List - SOLVED YAAAAYYY

    EDIT NOT QUITE SOLVED: Issue with all three pots & pot adjustments but came back aaaagggghhhh :no: EDIT2: Was the diodes!!! This wasn't holding speed so I cleaned the pots and put in all new electrolytic caps & transistors, and it still won't hold speed. But now, it pulses fairly aggressively...
    • Johnny_Law
    • Thread
    • parts list rebuild recap transistor yamaha yp-d6
    • Replies: 68
    • Forum: Turntables
  14. B

    DCM Time Windows

    Just purchased a pair of Time Windows. They are in decent shape. One sock is deteriorating, so I plan to replace both of them. Due to their age I am thinking they could stand to have the crossovers re-capped. I am not sure how to get the speakers "opened up" to get at the c/o's. This particular...
  15. Thom 2230

    Fisher 400 rebuild

    Fisher 400 rebuild and related topics.
  16. smurfer77

    Revisiting the Sansui AU-999 - repair, rebuild and mods

    I've not been quiet about saying my honest feelings about the AU-999 in the past. My earlier Sansui experiences were along the lines of AU-666, AU-555A, AU-505, AU-222. I was already in love but when I got my hands on an AU-777 and AU-777A I really fell deeply. I knew I had to have the TOTL from...
  17. morfeora

    Help to rebuild Canton CT-90 Crossover (I mean, almost the entire boxes)

    Hi Everybody, I am Rodolfo, electronic musician from Colombia. I have found you (AK), looking for some help on the web to solve the sad story I am about to tell. I run a small record label here in Colombia, TBM Music. Been working on music production and digital mastering (mostly for my own...
    • morfeora
    • Thread
    • canton ct-90 rebuild rebuild crossover schematics needed shcematics speaker
    • Replies: 108
    • Forum: Speakers
  18. dyche01

    Altec 890A Bolero questions

    I just scored a pair of Altec Boleros. They are the 890A model, with the 3000-series horn and the 10" 406A driver. The drivers are in great shape; the cabinets are okay; and one grill cloth is ripped. Interestingly, the big difference between the 406A drivers and the later 406Z's that...
  19. A

    Pioneer SA-9800 rebuild

    Over the last week I rebuilt my recently acquired SA-9800. The reason for the rebuild was to ensure reliability. The following were the power supply voltages before the rebuild. Values in bold are from my amplifier AWR-194 (Power Supply Assy) pins 1&2: -51.9v regulated, -52v pins 3&4...
    • AFJ
    • Thread
    • pineer sa-9800 rebuild sa-9800 upgrade
    • Replies: 10
    • Forum: Pioneer Audio
  20. RLJohn

    RLJohns Sansui G-5700 Rebuild & Repair

    Here are a few Pictures of it not working right and what I see that has been done before.
    • RLJohn
    • Thread
    • diagnose f-2980 f2980 help rebuild reciever repair sansui sansui g-5700 sansui g5700
    • Replies: 24
    • Forum: Exclusively Sansui
  21. Salbreth1

    Marantz 500 Restoration, Here we go...

    Hey guys, Its been a while but I'm starting a build on this guy and thought you might be interested. This unit was running when before I received it, but things are never that easy. When I powered it up there was an immediate smoke storm and it popped the 15 amp fuse. Challenge accepted.
    • Salbreth1
    • Thread
    • marantrz 250 marantz 500 marantz amplifier model 500 power amplifier rebuild restoration
    • Replies: 54
    • Forum: Marantz Audio
  22. Seaneman

    calling all ADS guys... need guidance on my 1090 refers project.

    Picked up a pair of 1090's in 'meh' condition on CL for 150$. The guy bought them new in, I think, 1994. My mint condition L7's are my favorite, everyday use speakers, so I was going to leave the 1090's as-is and just see if I liked them. Wellllllll... now I can't stop thinking about getting...
  23. Kevbo

    Marantz 2240B Tuning Needle

    I just posted a thread about a Stereo Light issues, but wanted to create a separate thread since this is slightly different. I replaced the factory lights in my Marantz 2240B receiver this past weekend with LEDs, every single light, including the tuning needle. Well, trying to get the front...
    • Kevbo
    • Thread
    • marantz marantz 2240 marantz 2240b rebuild receiver string tuning tuning needle tuning string
    • Replies: 12
    • Forum: Tuners
  24. Richs_Trains

    Marantz 1150d questions

    Hey all, I have an 1150d and it seems there is not much love on AK for this model, but I was considering re-capping the unit and I know it has a dual cap for the filter cap. Has anyone devised a solution for replacing this and I did not find any rebuilt threads on the 1150d, are there any out...
  25. Richs_Trains

    2015 Rebuild

    Hey Guys, Just had to tell someone.... I liked the 2015 so much that I bought a 5 button model and I have to say the build quality and the sound of the 2015 is just amazing for a 15 watt stereo. I got the 5 button this morning and it is one of the nicest I have purchase on eBay. Unit had it's...
Back
Top Bottom