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rebuild

  1. V

    Scott LK72B rebuild

    Trying a different approach now. I’m about to begin a complete rebuild of an LK72B with transformers and new can caps but everything else gone as I’m tired of too many little issues popping up. A scratch here, a pop there, NO SOUND for two days followed by glorious stereo for two weeks. I have...
    • viridis
    • Thread
    • rebuild scott supplier tube amp wiring
    • Replies: 3
    • Forum: Tube Audio
  2. Super Noob

    Project: Onkyo TX-8500 (mkI)

    In my quest to NOT buy anymore 70s receivers / amplifiers.... I have relapsed again. My focus is limited = great value, typical larger WPC, not working. Have read a lot about the TX-8500 mkII Onkyo and wished to find one. A TX-8500 mkI popped up locally in non-working state = it must be fate...
    • Super Noob
    • Thread
    • onkyo onkyo tx-8500 onkyo tx8500 mki rebuild recap recap and restoration tx-8500 tx8500
    • Replies: 35
    • Forum: Solid State
  3. sadsteve

    Need some help and advice with my new table (Thorens TD 126)

    So this is my first post on here, sorry if I make any mistakes cuz I'm still learning how to post, but its a lot better than lurking in the shadows reading through threads like I have been. That being said, I recently picked up a Thorens TD 126 Mk II for $80 on craigslist. It's seen better...
    • sadsteve
    • Thread
    • rebuild restore sme 3009 thorens thorens 126 thorens td 126 mk ii tonearm turntable
    • Replies: 3
    • Forum: Turntables
  4. Timothy Flath

    Pioneer SX-950 Restoration Project

    Thought I would share my project video series from a restoration I recently did of a tired old Vintage SX-950 receiver I recently finished restoring. It now has a new lease on life and will still serve for many more decades to come. Jump to the last part to see the final outcome. Here is part...
    • Timothy Flath
    • Thread
    • pioneer rebuild receiver refurbish restoration sx-950 upgrade
    • Replies: 90
    • Forum: Pioneer Audio
  5. Super Noob

    Project: Pioneer SX-1280

    Time for me to share another build. Keep in mind that this 1280 was picked up with some issues. Fired it up on the dim bulb = passed. Seemed to work somewhat... bias was off in one channel and offset was off. I dialed DC offset to a more acceptable level and tweaked bias as close as...
    • Super Noob
    • Thread
    • pioneer sx-1280 rebuild restoration sx-1280 sx1280
    • Replies: 36
    • Forum: Pioneer Audio
  6. jahmadeus

    SX-1010 Rebuild Questions

    Hello all, I recently acquired an SX-1010 in fairly good condition from a friend who is upgrading their system. My friend was the original owner of the unit and said it has never displayed any problems. Serial number indicates it was manufactured in November of 1974. Visually inspected the...
  7. A

    Bose 901 EQ light/power switch

    So I’m wrapping up my restoration of a Bose 901 Series I Equalizer, new caps and resistors throughout, and something strange happened. The neon light hasn’t worked since I got it, and I’ve yet to deal with a replacement. But yesterday when I (thought I) was finished and put it all back together...
    • atrelstad
    • Thread
    • 901 bose bose 901 active equalizer light bulb neon rebuild restoration
    • Replies: 3
    • Forum: Speakers
  8. C

    NHT Zero (not Absolute Zero) refoam

    I need to refoam/re-surround my "vintage" NHT Zero speakers but I can't seem to find exact kits for them. Are they the same speaker sizes as in the Absolute Zeroes? Here are the measurements: Speaker cone OD: 3-1/4" Surround OD: 4-5/16" Surround ID: 2-7/8" Suggestions for a source, anyone...
    • cgpiper
    • Thread
    • nht rebuild refoam zero
    • Replies: 2
    • Forum: Speakers
  9. M

    Seeking advice for Acoustic Research AR-5 restoration

    I will start this off by saying although I've dug through many threads about restoring, recapping, refoaming, repotting these speakers I am pretty much a total newbie to actually doing the things. The other day I came across some pretty decent looking AR-5s on the local marketplace. Took em...
    • mct
    • Thread
    • acoustic research ar-5 ar5 rebuild recap restoration
    • Replies: 7
    • Forum: Speakers
  10. taligentx

    Sherwood S-7900A - Repair and restoration

    Hi folks, here's a repair and restoration of a Sherwood S-7900A that initially had no power, and then after swapping a blown fuse would power up but had no sound on any input. It's been an interesting project, hope this helps and feedback appreciated if you see any issues or areas for...
    • taligentx
    • Thread
    • rebuild recap repair restoration restore s-7900a s-8900a sherwood
    • Replies: 42
    • Forum: Solid State
  11. G

    Pioneer SA-9900 issues

    Hello, I recently got my hands on a Pioneer SA-9900 amplifier. I'm not exactly sure what's wrong with it but so far I have determined that one channel has zero output, no hum while the other channel sounds clean but not as loud as it should. I've hooked it up as following: Pioneer TX-9500...
    • grgmchl
    • Thread
    • channel failure pioneer rebuild refurbish restore sa-9900
    • Replies: 30
    • Forum: Pioneer Audio
  12. BA3000

    Koetsu Third Party Rebuild

    Hi all, I have a Koetsu Rosewood Signature cartridge that I purchased secondhand about 6 years ago. I've determined it must be time for a rebuild or a replacement of this cartridge due to the fact that, A.) it's at least 6 years old and likely much, much older, and B.) There is a distortion...
    • BA3000
    • Thread
    • cartridge distorion koetsu rebuild rebuilt repair sibilance
    • Replies: 54
    • Forum: Turntables
  13. klamsoss

    Pioneer PL-12 AC restoration questions

    I picked this up for small money because it was in rough shape and I figured I could learn some stuff while restoring it and if I ran into a dead end or mucked something up, it wasn't a big loss. It follows the popular, simple design of sprung chassis, belt driven by a synchronous AC motor...
  14. MBuras

    Pioneer SX-950 PS Rebuild or Not?

    I know, that's a loaded question. :rolleyes: I've restored a few SX-950's over the years. A friend recently picked one up and just wants the bare minimum to get it into a reliable state, not trying for a full restoration. Was planning to rebuild the power board (usually very toasty in my...
    • MBuras
    • Thread
    • low hours pioneer power supply rebuild sx-950
    • Replies: 13
    • Forum: Pioneer Audio
  15. VintageDutch

    Tonearm dampening

    Hi,, I am in the procces of remoddeling, upgrading, rebuilding,nicer making of a Audion or Marlux MX-960. It is not a bad TT, has it flaws and probably be never top of the line, but I like tinckering with it...and after a heafty repair witch I had to do myself, I now stript the plinth from...
    • VintageDutch
    • Thread
    • audion diy marlux mx-960 plinth rebuild remodel tonearm
    • Replies: 22
    • Forum: Turntables
  16. T

    HELP! Marantz 2230 - wiring under P300 board

    I am a big dummy and I forgot to take before photos of the wiring under the P300 MPX board in my 2230. There are two posts on the underside of the board that had a wire going to each of them. They are labeled J316 and J30(5?) PXL_20201005_214115530~2 by tinwhiskers posted Oct 5, 2020 at 4:56 PM...
  17. Sglaw461

    2SC1116 Transistor dilemma.

    This is for the tech guys. I have a 7000 that I am restoring. I pulled the output transistors from both sides, 2 on the left are 2SC116A, 2 on the right are RCA SK3079. So I bought a pair of 2SC1116A, possibly fake ones, off "e-pay" and 3 x 2SC1116 originals from a tech who pulled them from a...
  18. Super Noob

    Project: Pioneer SX-3800

    Few weeks back, I stumbled on a local Fluoroscan. It was non-working and was concerned that the outputs many have been blown (from what I read). Though not the top of the heap SX-3900, the SX-3800 boasts 60 WPC (not too shabby). Here is how she arrived. It would not pass the DBT... so here...
  19. J

    BOSE 601 Series ii crossover (only one Resistor and Capacitor in Xover )

    hello Bose enthusiasts, Anyone who rebuilt the Xover could indicate if this makes sense to them ? Perhaps the Xover were modified, i have no way to know but am strating to suspect they might have been. But maybe not, might be a leaner version of the network. Eager to hear from anyone who has...
    • Jpkwd
    • Thread
    • 601 bose capacitor crossover dayton audio rebuild replacement series 2 series ii speaker
    • Replies: 7
    • Forum: Speakers
  20. dustmaker

    SX-1050 rebuild of working unit

    Ready to rebuild a sx-1050 that’s been in my possession for past 17 years. Both channels work, but it is scratchy. Never sounded good enough to actually use. I want to do this in an organized manner instead of just replacing parts.
  21. James Cox

    Radio craftsmen c400 monoblocks restore

    Hey, i recently purchased a lot of old tube amps to refurbish. 3 7591 based receivers (Sansui 1000a, Fisher 500b, and Scott 340b) all 3 seem to have the usual like old leaky caps and missing knob caps but those will be easy to fix. I also got a very rough pair of c400 monoblocks. 1 has been...
    • James Cox
    • Thread
    • c400 monoblocks radio craftsmen rebuild recap rusty chasis tube amp
    • Replies: 31
    • Forum: Tube Audio
  22. Super Noob

    Project: Pioneer SX-850

    Another project hits the bench. Pretty busy summer, but somehow was able to secure an unloved SX-850. If you have read any of my threads, you probably know that I am an absolute sucker for the Pioneer SX-xx50 line. Anyone that has worked on this set, knows it is very well built and easy to...
    • Super Noob
    • Thread
    • pioneer pioneer sx-850 pioneer sx850 rebuild restore sx-850 sx850
    • Replies: 79
    • Forum: Pioneer Audio
  23. Richs_Trains

    Beat up Marantz 2226b bias help

    Thanks for all your help on the Marantz 140, Marantz 170dc, and the Marantz 1180dc all seemed to turn out well. I had a choice of a 2226b or a 1152dc next. The 1152dc was at the bottom of a stack and the 2226b was much more accessible, so the 2226b is it. I bought this several years ago and...
  24. david winter

    Garrard 4HF idler rebuild (almost like 301 / 401 idler)

    Hello, Anyone knows a quality service to rebuild an idler for a Garrard 4HF in the European Union ? It's almost same as the 301 / 401 idlers except for the thickness (as far as I recall), so not a "female" type to insert around an axis, but the opposite (has two thin axis going into small...
  25. Defeño

    Heathkit W-5M Rebuilds

    It's amplifier day here in Boston. What that means I that I just took delivery of a pair of Heathkit W-5Ms that I ordered off of eBay about a week ago. I had been mulling the purchase of such an amplifier for a while now. Initially I was attracted by the tube cage design (I know, random, huh?)...
    • Defeño
    • Thread
    • build heathkit w5m rebuild tube w-5m w5-m w5m
    • Replies: 121
    • Forum: Tube Audio
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