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recap

  1. J

    Sansui TU-217 - solder/recap experts please help

    Hello, I've been lurking quite a while and decided to tackle a recap of my TU-217 (that I just picked up) with help from the FM Tuner Info website and various threads here on AK. First of all, thanks to this community! Normally I'd search the forum but this concern is specific to my board. I...
  2. T

    BOSE 601 Serie I , Crossover replacement.

    Hi, I got a pair of Bose 601 Series I speakers from 1977 that havent been used for more than 20 years. I've taken the speakers to a technical service to restore the foam to all the woofers and tweeters and he told me it would really improve the sound to change the crossover for one new...
    • tomirand
    • Thread
    • bose 601 cross cross-overs crossover capacitor crossover rebuild crossover recap recap
    • Replies: 4
    • Forum: Speakers
  3. goldswimmerb

    Marantz 2225 one channel low

    Hey guys, so I've been bitten by the repair bug and figured I would try my hand at a 2225. I've been going through it and think I've finally almost found my culprit. The left channel comes out much quieter than the right and when turned all the way up sounds terribly distorted. All voltages on...
  4. goldswimmerb

    Marantz 1070 problems

    Hey guys, so I picked up a Marantz 1070 from an estate sale. The unit seems very clean on the inside. I've already tried cleaning the controls and have been poking around in the preamp circuit. The amplifier works just fine, when I run through the AMP IN bypassing the preamp it works just fine...
  5. R

    What caps to use on Hitachi HMA-7500 mkI ?

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  6. G

    Clipped output in 2235B at about 75 percent volume.

    I recently acquired this receiver which was dusty but otherwise functional. No appearance of any service performed. I cleaned the unit internally and Deoxed the pots and switches. Under power the unit has a minor 60 Hz hum on the phono inputs but the aux in is quiet. Those are the only two...
  7. goldswimmerb

    Thrift store 2270

    Hey guys, so by a stroke of luck I found a 2270 at a thrift store. It seems to be properly biased and the DC output is minimal, however I wanted a second opinion here. I am planning to recap it since the capacitors all appear original, but looking at it these output transistors definitely are...
  8. goldswimmerb

    Yet another Marantz 2325 restoration thread

    Hey guys, so this will likely be my first big restoration so I figured I'd document it here and use some of your advice as well. I've done work on smaller receivers before, but nothing as big as this 2325. Got it for a steal online, it currently works for the most part but all the components are...
  9. pari57

    Tandberg TR 2075 ; the Q. is: to recap or not to recap ?

    Hi there, I stumbled upon an Tandberg TR 2075 from,... I guess 75/76 (based on the parts-production dates).. completely genuine, no fixes. Apart from the optics; it is really dirty (and somehow sticky), the machine works great. Just 3 display lamps need replacement, but that's it. However...
  10. Super Noob

    Project: Marantz 2275

    Here are some current units that I snagged recently. Obviously, I have problem with buying stuff, but this is my hobby and I enjoy it very much. I remember when I was ten ~1984 and my father brought home a used stereo for my room... someone he knew well had passed away and his wife gave to my...
  11. J

    Please help me fix my mistake :(

    Ok so I'm pretty new here so please let me know if I'm posting on the right board here and whatnot, but anyway here's the story. I recently bought a Marantz 1520 receiver from eBay for fairly cheap (definitely scared it would come busted up) and being someone who only has a little electrical...
  12. angelaudio

    Restuff the vintage capacitor cans or...??

    Greeting fellow AK’ers! I’m restoring a vintage Clairtone tube amp (chassis pull) but I’m not sure what to do when it comes to replacing the filter caps. I watched a video online (D Lab in YouTube) where the guy takes three regular Electrolytic caps of the pertinent values and then just...
    • angelaudio
    • Thread
    • capacitor upgrade chassis pull clairtone recap recap power filter vintage amp
    • Replies: 22
    • Forum: Tube Audio
  13. Isaac C.

    Dynaco A25 Questions

    Hello everyone, I recently picked up a nice pair of Dynaco A25s and have a couple of questions. Firstly, does anyone have a suggestion as to what to use to remove stains from the white grill cloth? Finally, I might potentially recap these and was wondering if the drivers are in anyway "sealed"...
    • Isaac C.
    • Thread
    • dynaco 25 grill cloth recap speaker stain
    • Replies: 35
    • Forum: Speakers
  14. Leestereo

    Leestereo's Restoration and Upgrade of a Sansui AU-777A

    A little while ago (last summer), a very nice AU-777A was on the workbench for a complete restoration and upgrade. Part 1: HEAD PRE-AMP BLOCK (F-1194) The F-1194 board includes the phono stage (600-series components) and the line level stage (700-series components). A. Phono Stage The...
  15. jFF_Bulbo

    MARANTZ 2270. HELP

    Hello I recently tried to recap tonee board P450. Once i finished, the left channel sounds low and dirty. Unit was working fine before i Recap, so, i have done something wrong. To replace capacitors i installed MPK caps With Tha same values. I resolder and Soublette checked my work. Before...
    • jFF_Bulbo
    • Thread
    • help marantz marantz 2270 recap restore vintage
    • Replies: 5
    • Forum: Marantz Audio
  16. D

    Sansui AU-317 Restoration: Zener question

    Hello All, I'm actually doing a restoration of a AU-317 which is in a very good condition and never opened (it seems), performing a full recap, relay change, replace carbon for metal film resistors (including fuse resistor ones), pot cleaning and checking all broken/cold solder joints...
  17. E

    Recapping Denon DP-47f

    I decided to recap my old DP-47f, not because it is showing its age, but instead based on the suggestions of some kind members of this forum, who explained the risks that using old caps presents, especially in an all-electronic microprocessor-controlled turntable like this one. I found a page...
  18. Marantz 2270 - New Member - Total Novice But Want to Attempt "Restore" - Yay? or Nay?

    Marantz 2270 - New Member - Total Novice But Want to Attempt "Restore" - Yay? or Nay?

    • rbs2
    • Media item
    • 2270 engraved output transistors recap
    • Comments: 2
    • Category: Marantz Gallery
  19. JayPare

    NAD 7080 Rebuild

    I recently acquired a NAD 7080 and I want to rebuilt it. For now I only Deoxited it, changed the front LED and I'm currently replacing all the button in front. I decided to start a thread to follow all the process. So far I'm planning on: -Recapping -Change power switch (arcing and sparking)...
    • JayPare
    • Thread
    • deoxit diy knobs nad nad 7080 recap signal meter
    • Replies: 17
    • Forum: Solid State
  20. jFF_Bulbo

    Marantz 2270 recap Help

    Hello AK'ers. I hace a 2270 Unit .recently serviced. Many new pieces. I like to recap preamplifier section, so, according to the post of LEESTEREO about, I got some MKP capacitors With the same values that the actual capacitors instaled. I used the user's manual part list. I'd like...
  21. Aaron99

    Marantz 2265: Partial restoration. Distortion on left side. *Resolved

    I have a 2265 that has been sitting in the stack waiting its turn. I plan on restoring it to listen in my garage. Physical inspection looks good. All three tone pots are stuck. Powered up on DBT, the lights are very green, there is a slight hum. Left channel is distorted in speakers, not in...
    • Aaron99
    • Thread
    • 2265 distortion marantz recap restore troubleshoot
    • Replies: 10
    • Forum: Marantz Audio
  22. pjrengineer

    JBL L110 Recap

    Hey AK I decided to recap my jbl l110 speakers. I really enjoy the feeling these speakers in stock form give you. There is something magical about the 033 tweeter and typical jbl warm forward midrange. The bass isn’t too shabby either. Very heavy woofer. I have replaced the capacitors with...
  23. clockspot

    Question about NAD 7020 rev 2 recap

    Hello all! I'm adopting my parents' old NAD 7020 rev 2 as the hub of my small hifi/phono system. One of the channels is very flaky (as I recall – only tried it a few times after pulling it from storage) so I'm getting ready to do a full recap on it. (For posterity and others' use, here is my...
  24. Nuel

    Sansui AU 7900 Recap

    I am in the process of recapping a Sansui AU 7900. It works fine, but it was pretty beat up. Not sure if the sound is as expected plus there is also a cold solder somewhere in the main board. So thought I'd replace the usual prone to fail components (Caps, VD1212, fuse resistors) with new ones...
  25. T

    SANSUI AU-517 Recap & Restoration?

    Hey Sansui fans, thanks for reading. Recently my (cherished) Sansui AU-517 starting going out in the right channel. Thanks to Audiokarma I figured out it was a dirty switch that separates/connects the power and pre amps. Cleaned with Deoxit and problem solved. By passed switch with Audioquest...
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