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resistor

  1. Codi

    Where to buy specific vintage parts / suitable replacements?

    Hello! I have a Realistic STA-2100 that I recently acquired from a relative. I plugged it in and it powers on but it started smoking out of the rear :( I THINK I have identified the part as: C1502 47u 10V EL 647-UPS1A470MDD Attached is a picture as well, I believe it is the white rectangle...
  2. W

    Sansui A-40 distorted right channel.

    Hi guys, picked up this A-40 for fairly cheap on craigslist for a desk setup for my PC, and eventually use it for a shop amp, but I noticed some pretty bad distortion as I get over Volume setting 2 on the amp. Im running Infinity Reference One's I also picked up off craigslist for really cheap...
  3. mykidsbutler

    Low noise resistor replacements SX-727 head amp

    On a SX-727 head amp I have a couple low noise resistors out of spec. What is a equivalent replacement for these? Should the modern carbon films be considered?
  4. B

    KLH Model Six

    Hello, I have been lurking on this site for a while. Recently bought a cheap pair of KLH model six speakers from Craigslist. As expected, the tweeters are not working, so I am going to put in new capacitors. I have read many threads on here, but all of the old ones look different than mine...
    • Bad Andy
    • Thread
    • capacitor klh six resistor vintage
    • Replies: 15
    • Forum: Speakers
  5. Yemm66

    G6000 Resistor type

    Hello. Need some help identifying this resistor please. Not sure what to order to replace it. It's on F-2856 board. Photos of burnt resistor (R41) position and the opposite side with the still good and working resistor. I usually order form Digikey, buy any link would be gratefully appreciated...
  6. J

    Fender Deluxe Reverb -Tube malfunction takes out screen resistor

    The shop amp is back on the bench for repairs after an event during use which was a loud pop followed by red plating of a finals tube. The amp was shut down and the tube replaced but to no avail. There was nothing more to be heard from it. I focus my troubleshooting with a visual...
    • JRUBIN
    • Thread
    • 6v6 bias fender deluxe reverb hickok 6000 matching repair resistor screen troubleshoot
    • Replies: 6
    • Forum: Tube Audio
  7. V

    Realistic STA-65D and general Variable Resistor question

    I have inherited a STA-65D that looks/sounds great except for weak radio (AM and FM) reception. Upon closer inspection, I have discovered that someone else has been "in there" and either broke or poorly replaced most (if not all) of the Variable resistors on the IF boards - a combination of 5k...
    • vmedia
    • Thread
    • radio shack realistic resistor variable resistor
    • Replies: 0
    • Forum: Solid State
  8. waggs098

    What does this resistor do? - Crown PS-400

    Just wondering what the blown resistor in the pics does. The unit seems to work great and bias and dc offset are near spot on. Want to replace the resistor but would like to know what it is for and what could possibly cause it to break like it did. There is no sign of smoke or burning and the...
  9. S

    Revisiting an old JVC AX–R97 thread

    Hello everyone! I was following this thread - http://audiokarma.org/forums/index.php?threads/jvc-ax-r97-r843-resistance-value.752967/ but have no idea if this fellow ever resolved his problem. I have the same problem. On my unit (JVC AX-R97), both front panel lamps were blown, and resistor...
  10. Ryan Scruggs

    PROBLEM with Marantz SD 9000 Compudeck PK21 Board

    Hi, all! I have previously posted about some issues I have been having with my Marantz SD 9000. I have replaced the notoriously bad optocouplers, and all belts and idler tires. What I neglected to notice were the burnt out resistors on the PK21 board of the machine. I purchased and replaced...
    • Ryan Scruggs
    • Thread
    • help issue marants problem resistor schematic sd 9000 tape tape deck tape player
    • Replies: 0
    • Forum: Tape
  11. Ryan Scruggs

    Marantz SD 9000 Compudeck PK21 Board Question

    Hi, all! I have previously posted about some issues I have been having with my Marantz SD 9000. I have replaced the notoriously bad optocouplers, and all belts and idler tires. What I neglected to notice were the burnt out resistors on the PK21 board of the machine. I purchased and replaced...
    • Ryan Scruggs
    • Thread
    • compudeck help marantz pk21 problem question resistor resistors schematic sd 9000
    • Replies: 8
    • Forum: Marantz Audio
  12. Y

    Marantz 2220B bad J812 and J808 Voltage

    Howdy, Still working on my receiver after replacing some components in the PSB already. What's replaced is shown in yellow and what's not been replaced is shown in red. I am getting a reading of ~5V @ J808 and ~5V @ J812. Per the manual J812 should be getting 35V and J808 should be getting...
    • Yahn
    • Thread
    • 2220 2220b h805 h806 j808 j812 marantz resistor voltage
    • Replies: 25
    • Forum: Marantz Audio
  13. R

    Fisher R-20 Resistor R59 Source. You know, the double-ended tall one

    On the top of an R-20 amp there's a tall power resistor, R59, right next to the rectifier tube, but electrically separated by a 50 ohm R66. R59 is effectively two power resistors, a 5500 ohm and a 100 ohm. Mine is cracked. Symptom is that all tubes glow ( 6v rail working fine ), but zero sound...
    • rsaxvc
    • Thread
    • fisher power resistor r-20 resistor
    • Replies: 1
    • Forum: Fisher
  14. runningdog

    Replace 150 ohm 5w resistor on 2230 power supply

    The square ceramic 150 ohm 5w resistor on a 2230 power supply can scorch the C804 electrolytic capacitor and the wire running to the collector of the outboard transistor. It is squeezed in-between these two items (this does not apply to the units that have the resistor mounted underneath). Is...
  15. kjello

    Transistor replacement soldering question

    Hi all gurus or other helpful souls of this beloved forum I have a question regarding pcb mounted transistors without heatsink. As you can see in this picture there are some heat damage on the board, (amplifier probably took some abuse) my questions are; would it be better to leave the "legs" a...
    • kjello
    • Thread
    • 4r7f carbon film flame fusible inflammable proof resistor soldering transistor
    • Replies: 45
    • Forum: DIY
  16. Richs_Trains

    Model 18 fire!

    Hey all. I was trying to re-cap my Model 18 that was just repaired and working fine. Well I got through most of it without an issue until the last section I did. I replace C-20, C-21 and C-22, unfortunately I installed one of these backwards. My question, I dbt'd the unit it passed fine, I...
  17. J

    MX110 - Smoke on 220ohm resistor after recapping

    Hi, Bought a MX110 3 weeks ago - I never turned it on - and I just finish recapping it. I first started it with a Dim Bulb Tester and everyhting was working fine. Then went without. One of the 220ohm white resistor near the electric plugs started smoking (Pretty sure it is R152 - it is...
  18. Ron Joiner

    Dynaco SCA-80Q I thought my troubles were over

    SCA-80Q Blown Resistor (5) by Ron Joiner posted Sep 13, 2016 at 10:51 AMSCA-80Q Blown Resistor (4) by Ron Joiner posted Sep 13, 2016 at 10:51 AMThis past spring I resurrected this old integrated amp from the basement. It immediately developed a loud hum. I addressed this by replacing many of the...
    • Ron Joiner
    • Thread
    • capacitor dynaco power amp repair resistor sca-80q
    • Replies: 4
    • Forum: Solid State
  19. Hauxon

    Burnt resistor on M-25 power amp

    I'm considering buying this amp from a local fellow. He told me he burnt a resistor last time he used it (some months ago) and he hasn't gotten around fixing it. I was wandering if someone here could share his/her thoughts regarding the issue and possible causes. I'm not an electrician and no...
    • Hauxon
    • Thread
    • m-25 pioneer power amp repair resistor
    • Replies: 13
    • Forum: Pioneer Audio
  20. Nac458

    Marantz 1030 Problem(s)

    Hello all, So there I was. I had just completed an entire re-cap for the little 1030 amp. I was excited to hit the switch and resolve the "bad capacitor problem" on the power amp board. But upon doing so, only the left channel was able to come through and I was left disheartened and...
    • Nac458
    • Thread
    • bias marantz marantz 1030 resistor transistor
    • Replies: 10
    • Forum: Marantz Audio
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