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resistor

  1. B

    Yamaha C-70 Phono Preamp Question

    Hello all- Been enjoying my C-70 for years. Lately I’ve been further modifying the analogue output stages on some of my older CD players with Vishay film resistors in place of the OE carbon crap. Got me thinking- has anyone replaced the resistors with higher tolerance metal film types in the...
  2. N

    Requesting guidance on Systemdek IIX restoration

    I recently was able to buy a Sytemdek IIX that appears to be an early model (steel bottom, teardrop armboard). When the power switch was clicked on nothing would happen. I researched a bit and thought it would be the capacitor but ultimately turned out to be the switch that was faulty. I've...
    • Nestorpants
    • Thread
    • capacitor fuse repair resistor systemdek iix
    • Replies: 5
    • Forum: Turntables
  3. C

    Sony TA-1010 Resistor Heating up a lot

    Hello this is my first post here, i thought id ask for help since am at a complete loss as to whats wrong with it so my father has this Sony TA-1010 that unfortunatedly a couple of years back someone that didnt know how to operate it shorted the left channel speaker terminals, after some...
  4. B

    Need Help Identifying Thos

    I received such great advice on my last post, I figured I’d try this on y’all. Can anyone identify what this is? It’s feels like ceramic but the markings show are all it has. This place is great. I owe you guys a beer.
    • BuffaloJeff
    • Thread
    • capacitor component identification emerson recapping resistor vintage audio
    • Replies: 1
    • Forum: DIY
  5. Jake O Bob

    Yamaha C-4 Preamp Recap

    Gone through replacing all caps along with variable resistors on this C-4. Plugged into DBT and the good news is I've got a dim glow. The bad, some smoke came up from the function board near VR123 trimmer resistor. Looks like these 2 resistors are toast (see photo). I think both R257 ( 1.2KΩ )...
    • Jake O Bob
    • Thread
    • c-4 capacitor preamp recap resistor smoke yamaha
    • Replies: 107
    • Forum: Yamaha
  6. N

    Sansui 1000 hum? What does the HUM. Balance 100 ohm do?

    Info for Sansui 1000 not the 1000a Looking for advice on eliminating low level hum/buzz on right channel. I’ve recapped it. Replaced the 6an8 and PL36 tubes with matched sets. I’m still getting a slight hum on right channel. I’ve swapped tubes but still getting a buzz. If I reverse channels...
    • noise415
    • Thread
    • hum hum. balance resistor sansui 1000
    • Replies: 21
    • Forum: Tube Audio
  7. Rod B

    Help identifying crossover resistor

    I'm wanting to do my first speaker recap. The speakers are Bic Venturi Formula 5's. Can anyone help identify the crossover resistor in the following pictures? I can't find a schematic for these. The crossover part is identified as BIC CC51 Control Center. Thanks in advance for any help.
  8. V

    Resistor replacement

    Hi I have a 5050 and when I took off the bottom cover to access the f-2646 board to clean the pots, I noticed a burned up resistor in R14. I found the same resistor on R13 and it is a 33k ohm resistor. when replacing this, what type of resistor should I replace it with? 1/4w metal film? And...
  9. P

    KENWOOD KX-1003 (KX-1030) - Need a resistor

    Hello, I own a Kenwood KX-1003 (same like a KENWOOD KX-1030 but with a gunmetal plate) and I'm looking for a resistor. Got the tape deck but sadly the BIAS/ADJUST-control is broken. I removed everything and saw that the resistor spindle is damaged. So I need a new resistor and I'm looking for...
    • Peter K0801
    • Thread
    • kenwood kx-1003 kx-1030 potentiometer potentiometer repair resistor tape deck
    • Replies: 8
    • Forum: Tape
  10. C

    Magnavox Astrosonic R222 Chassis

    Hi all, I recently acquired a Magnavox Astrosonic 1P3661 (chassis R22276 DE) from its original owner. It’s in great condition and is solid state. I was able to restore the W821 turntable with a tear down, relube, new stylus, and new idler wheel. I’m now focusing on the chassis. Overall sounds...
    • csimone
    • Thread
    • astro sonic capacitor chassis magnavox output capacitor restoration resistor transistor
    • Replies: 2
    • Forum: Solid State
  11. Impact

    Realistic STA78 Resistor/Transistor fun

    Looks like il be adding to the fun as I am as well a STA78 owner that has crackling/popping out of only the left channel. After searching the forums, I put together that this is likely a bad transistor and decided to start doing a cold test of the transistors using super cold spray. During...
    • Impact
    • Thread
    • noise realistic resistor squealing transistor
    • Replies: 2
    • Forum: Solid State
  12. Alex Santos

    Please help me identify this resistor

    Hello I have R466 out of circuit. The value read is OL so it must be bad. It's expected to have a value of 68 According the service manual (NAD 7240PE) it has an exclamation mark next to it on the parts list. Here is what it shows: (!) R466, Res. Carb, 68 +/- 5% 1/2W "Product Safety Note...
    • Alex Santos
    • Thread
    • nad 7240pe resistor
    • Replies: 16
    • Forum: DIY
  13. G-901

    G-9000 R33 on Driver Board keeps burning up

    Was testing receiver with Dim bulb tester and keep burning up R33 on the F-2806 driver board. Any suggestions. I was going to start by testing TR 9 and TR 7
    • G-901
    • Thread
    • driver board f-2806 g-9000 g-901 resistor short circuit
    • Replies: 1
    • Forum: Exclusively Sansui
  14. H

    Metal film resistors- Yamaha A1

    Need to replace some 1.5Kohm resistors in the Drive board of a DC coupled Yamaha A1 amp. Originals were carbon, anything inherently wrong or risky in using good quality metal film resistors which I have in stock?
  15. H

    Resistors. How to determine voltage and other spec.

    Need to replace some resistors on aYamaha A-1 amp. The Service Manual simply says they’re “Carbon 330ohms” but when ordering additional specs are offered such as: -power rating? -resistance tolerance? -voltage rating? Can anyone advise what I should be seeking for each of the above. (And how...
  16. H

    Fuse resistor substitute 68ohms 60mA

    There is a a 68 ohms 60mA fuse resistor found in the Yamaha A-1 and other Yamaha amps of the same period. Could anyone tell me what is the best substitute?
    • Hifibythekg
    • Thread
    • a-1 fuse fuse resistors resistor yamaha
    • Replies: 24
    • Forum: Yamaha
  17. EmoCowMoo

    What the heck is this circuit board component?

    I'm restoring a portable Masterworks M-8608 8-track cartridge player. I couldn't ever find any schematics on this unit unfortunately. There's these little 2-leg purple disk things on the main circuit board and I'm trying to figure out what the heck they are. I'd replace them if they're bad, but...
    • EmoCowMoo
    • Thread
    • 8-track cartridge diode inductor masterworks portable player purple disk resistor rl filter
    • Replies: 11
    • Forum: DIY
  18. guinypig

    Bogen RP60 Power supply resistors

    Hi, I am currently working on a Bogen RP60. I just noticed that 2 resistors in the power supply do not have the value indicated in the schematics. R84 and R87 are supposed to be 33K but have apparently been replaced with 10K like R85 and R88. Can anyone confirm that the value of the factory...
  19. G

    Resistor wattage, any way to find out?

    Hi! I was a bit unlucky and broke a resistor in the volume section of the amp (relay based, with the clicks/ticks every time you adjust the volume). Finding out resistance is not a big deal, since it's marked on the PCB, but the lack of service manual makes it hard to predict the correct...
    • GytisB
    • Thread
    • resistor resistor wattage wattage
    • Replies: 10
    • Forum: DIY
  20. G

    Denon PMA-925R burns resistor

    Hi! I need some help finding out whats wrong with a Denon PMA-925R amp. Right after a relay clicks in, it makes burning smell and maybe after 5-10 seconds, there was a smoke. Any ideas on what can be causing this? One channel seemed to work fine. While the other one didnt produce any sound and...
    • GytisB
    • Thread
    • denon denon pma denon pma-925r pma-925r resistor resistor burned
    • Replies: 0
    • Forum: DIY
  21. flyingfinn

    Single resistor in series db loss?

    Greeting all. I have an 8ohm mid of which I'm looking to build an 800hz-2900hz 1st order band pass. I have what I need on hand, but only if I add a 4 ohm resistor to make it 12ohm. If I do this, approximately how much db will I lose? The only charts that i can find is for fixed L-pads. Thanks!
    • flyingfinn
    • Thread
    • crossover resistor
    • Replies: 11
    • Forum: DIY
  22. A

    AKAI GX-210D first power on in 13 years = unlucky burning smell.

    Hi, from power on after all that time things seemed to be going well until loading a new tape resulted in a mechanical stuttering sound (motor?) followed by electronics burning smell. I switched off before anything went bang and will get to inspect closer in coming days. From my reading and...
    • AudioAu
    • Thread
    • akai burning capacitor gx-210d gx210d r2r resistor smell tape
    • Replies: 11
    • Forum: Tape
  23. H

    Yamaha CR-1020.. replacement resistors and transistors help needed.

    Yamaha CR-1020 - On the amp boards can anyone recommend the replacement resistors for: R627 and R628? - Which of these diodes is the better replacement for HZ-6C? https://www.mouser.co.uk/ProductDetail/512-1N5232B or.. https://www.mouser.co.uk/ProductDetail/771-NZX6V2B,133 Best replacement...
  24. G

    Resistor swap help

    Hi! I have some amplifier recaps planned, and while checking over values of caps, i noticed something. One of the amps i plan to recap have some cracked resistors (just 2-3 of them), and another amp has some burned ones (or at least they look burned). So I thought I would just look up the...
    • GytisB
    • Thread
    • resistor resistor troubles resistor value resistors
    • Replies: 25
    • Forum: DIY
  25. FireGuruMN

    JBL 4435 Recap and Mods with a Little Help from the Easter Bunny

    I have another thread in the "Lansing Legacy" about these speakers also: https://audiokarma.org/forums/index.php?threads/jbl-4435-bucket-list-countdown.901225/ That thread talks about positioning and replacing the diaphragms in the horns. The executive summary: Position them wherever they will...
    • FireGuruMN
    • Thread
    • 4435 capacitor crossover jbl resistor speaker vintage
    • Replies: 16
    • Forum: Speakers
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