• 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

help needed

  1. 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...
  2. SmokedPorter

    CR-2020 Service Bulletins - Please Help

    I am not a technician and need advice on getting upgrades done on two CR-2020s. See “Background” below regarding the our two CR-2020s. Anything will be greatly appreciated. Thank you. A couple of days ago I dug out our two CR-2020 receivers to look further into the speaker protection relay...
    • SmokedPorter
    • Thread
    • advice cr-2020 electrolytic help needed power supply regulator transistors service bulletin yamaha
    • Replies: 6
    • Forum: Solid State
  3. YALE70

    Sharp VZ-3000: Dead Turntable - Bad Microcontroller?

    Hey guys, This is probably going to be long and complicated but I'm frankly struggling to figure this out and could use some advice. I'm not exactly experienced when it comes to diagnosing these sorts of problems. I picked up a Sharp VZ-3000 last week and I'm in the process of attempting to...
    • YALE70
    • Thread
    • advice needed electronic parts electronics help needed hifi microcomputer microcontroller sharp sharp vz-3000 turntable
    • Replies: 16
    • Forum: DIY
  4. Frank Wild

    A little help from my friends? Kenwood KA-3500

    With loads of help from Hopjohn https://audiokarma.org/forums/index.php?threads/the-ka-3500-restoration.840144/ and Super Noob https://audiokarma.org/forums/index.php?threads/project-kenwood-ka-3500-nate-dogg.983234/ I’m restoring my dear old Kenwood KA-3500, not my first soldering project...
  5. engstrom

    Help With Crossover Design Identification

    I'm a complete novice to the audio world and I'm hoping someone more experienced can help me understand the design of this crossover. It's from an Allen Organ HC-15 3-way speaker (15" woofer, 4" mid-range, & 1" tweeter). I looked up a few 3-way crossover designs and the closest matches were 2nd...
    • engstrom
    • Thread
    • crossover crossover design help needed organ speaker
    • Replies: 9
    • Forum: DIY
  6. A

    A bit in over my head - Need help building a 2.1 setup

    I have an H/K 330B receiver and a turntable (does not have a preamp). Because of this I plan to be using the phono input which to my understanding will utilize the receiver’s preamp. I plan to get tower speakers and a subwoofer but because there’s no subwoofer output I’m not sure what my...
    • audio noob58
    • Thread
    • 2.1 system active subwoofer harman kardon harman kardon 330b help needed passive subwoofer phono input pre out
    • Replies: 18
    • Forum: General Audio Discussion
  7. Z

    3D printing a stereo enclosure, help me design it!

    Hey y'all, a friend of mine recommended me this community when he heard about my project. It started as a need for an audio solution for my living room tv and became a DIY project.. because I'm a masochist. I was looking to replicate a horn look and originally considered something like a...
    • Zooqi
    • Thread
    • 3d printing diy help needed
    • Replies: 2
    • Forum: DIY
  8. simplyvolkol

    Trouble, big time

    I have always relied on my Kenwood KR 6050 and built my whole setup around it as it was one of the first components I got with my Dual 606 (might tell the short story if y'all are interested). However one day BOOM, the amp blew a fuse and apparently, the power amps left side blew and both of the...
  9. Reliving.

    Akai GXC-570D MKII Power Caps?

    Hi there all, Just wanted to know what is the best replacement for these power swtich caps? Would it be just 250v 0,047uF PME right?
    • Reliving.
    • Thread
    • capacitor help needed powerswitch
    • Replies: 5
    • Forum: Tape
  10. OakBayou

    2226B Rebuild Help

    First, let me thank everyone who participates here past and present. This forum is the primary thing that got me into vintage gear, and built my knowledge and confidence to try to conserve the Marantz magic for future generations. I've gotten myself into a pickle with this unit and hoping I...
  11. D

    SX-990 Recapping help.

    This is my first post so I am sorry if I am in the wrong area. I am looking for the caps or a whole cap kit to revitalize my SX-990 that has been sitting in a closet for many years. I have looked online and have found nothing really for the 990 other then replacement boards, knobs, and the like...
  12. Sgrobstein

    McIntosh C20 Noise Issue

    I have a McIntosh C20 that has been completely restored (All caps and resistors replaced). There is an inconsistent noise coming from the unit. Noise is louder in the phono section. Noise appears about 1x per second but is inconsistent when it shows up. There is a consistent sounding noise...
    • Sgrobstein
    • Thread
    • c20 help needed mcinstosh noise noise preamp noise pre amp help preamp
    • Replies: 11
    • Forum: Tube Audio
  13. D

    Inherited a CT-F950 and RT-707

    I'm looking for some advice/help. The 950 was in the garage for years and looks to be in excellent shape. I used an alcohol pad on the heads capstan/pinch roller. I gave it some time to dry, popped in a tape, and let it go. It plays for a couple of seconds and stops. When I take the tape...
  14. Strgazr1967

    Luxman M12 issues... Hoping for help

    I recently picked up a gorgeous setup consisting of a M12 amp, CX 101 Pre-amp and TX 101 tuner. MINT in every aspect. Powered up the unit and to my dismay there was no output from the left channel. I started the normal trouble shooting of swapping speakers, cables, checking fuses, swapping...
    • Strgazr1967
    • Thread
    • amp rebuild help needed luxman transistor equivalent
    • Replies: 5
    • Forum: Solid State
  15. redpackman

    Technics SL-D5 Turntable - - Runaway Speed issue

    I just picked up a really nice, clean SL-D5 turntable, with BOTH spindles. This has been taken care of well, It looks like it's worth the effort. Dust cover is in good condition, clean etc. etc. I was excited, but the seller warned me that there was a speed control issue. I thought, no problem...
    • redpackman
    • Thread
    • help help needed sl-d2 sl-d5 speed control technics
    • Replies: 8
    • Forum: Turntables
  16. Dwayne Heath

    Need help with pioneer sp-sb23w

    Does anyone know anything about this pioneer Andrew Jones designed sp-sb23w speakerbar? It is an awesome sounding piece of equipment but it died on me ..like alot of others I have found out..I think it can be fixed just dont know Exactly how.
  17. D

    Fisher 230-XA Need help. Switch is stuck in the off position.

    I have recently acquired a turntable and the switch is stuck in the off position and I am unable to turn it to on or auto. Let me know what I can do to fix this, because I want it to be a present for my girlfriend.
    • Duskleaf
    • Thread
    • broken help help me please help needed turn table
    • Replies: 0
    • Forum: Turntables
  18. jhs_61

    Soundcraftsmen RA7502 Project

    In starting this thread, I would like to recognize that the amount of Soundcraftsmen information on this site is amazing. Goat67, Avionic, and Geode have provided massive amounts of information/guidance in dozens of threads that I have sincerely enjoyed. I have owned Soundcraftsmen products my...
    • jhs_61
    • Thread
    • 5002 bias adjustment help needed help please ra7502 repair soundcraftsmen
    • Replies: 24
    • Forum: DIY
  19. X

    Recording levels not equal on cassette tape

    I have a JVC KD-A5 that plays tapes normally, but when I go to record onto it, from the radio or any other source, the left meter reacts normally and the right meter doesn't react unless I turn the levels past peaking compared to the left meter. The levels coming out do represent the meters, so...
    • Xavier Ihrig
    • Thread
    • cassette help needed input jvc kd-a5 record level repair tape
    • Replies: 17
    • Forum: Tape
  20. X

    Repair Help: Grommes Precision Amplifier G125

    I found an old amp at a thrift store in McKenzie, TN that came with two microphone mixers and a feedback controller. When I pulled the amp off the rack, the two capacitors inside had burst. They were the exact same, so I only pictured one. There's a TI-84+ for reference, but I don't remember the...
  21. B

    Pioneer SX-828 help needed

    Hello All, First time poster, long time lurker. I recently bought a Pioneer SX-828 for $100 from a lady moving out of her home. She didn't know anything about it as it was her husbands and it was working "good" right up till she packed it for moving a week earlier. It was packed in the original...
  22. B

    Tweeter Identification needed

    Need info on these thanks, there is no numbers or markings, They are a wooden masonite disc about 5" in dia, 3" x 3" square magnets and metal plate on rear, inward dome is about 1" in dia, and weigh 650 grams each.
    • billp1960
    • Thread
    • help needed information tweeter
    • Replies: 3
    • Forum: Speakers
  23. Dion Fan

    Help: What stylus is this?

    I believe this cartridge is a stanton 500 gold (Let me know if im wrong). The turntable is a refurbished dual 1209. It plays great and I love it. But.. I want to get the best sound so I I balanced the tone arm, aligned the cart but I wanted to adjust the stylus force (Tracking force). So does...
  24. T

    Looking for a friend with a variac

    Hi All, Long time stalker of the forum, mostly dabble in vintage speakers and tube headphone amps. Finally decided to recently take a plunge on a vintage Harman Kardon 930 receiver. The piece is almost in mint condition, the only issue being that it hasn't been powered on for potentially 20+...
    • tigerdog
    • Thread
    • harman kardon 930 help needed receiver variac
    • Replies: 14
    • Forum: DIY
  25. civilsounds

    Boston Acoustics T830 refoam help needed

    Hey AK, I just picked up a sweet pair of BA T830 for very little, the nice old lady said they were her late husbands and hadn't been used in a while. She cleaned them constantly so there wasn't any dust damage but I could tell the woofer surrounds were crumbly. I got them home and sure enough...
    • civilsounds
    • Thread
    • boston accoustics help needed refoam refoaming
    • Replies: 4
    • Forum: Speakers
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