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capacitor

  1. Yemm66

    Denon DRA-825R AV Receiver

    Ran into this capacitor today. Never seen one before. Can anyone tell me what it is? It says 22 mf 5.5v "SB" on the label What type of capacitor can you use in it's place? It's kinda big for it's small value. Thanks for the help. It wouldn't show any value on my meter either. It is a cheap...
  2. S

    Capacitor Confusion

    Hi, I purchased a pair of Mission M790 speakers about 12 years ago. Recently one of the speakers stopped working. I removed the crossover and using a multimeter identified that two of the capacitors had failed. I have attached photos identifying the capacitors that are no longer working...
    • Steve_NZ
    • Thread
    • capacitor mission 790 speaker
    • Replies: 4
    • Forum: Speakers
  3. DodgeShadow

    Kenwood TK-140x Rebuild

    Good evening everyone! I bring to you tonight, my guinea pig for my first rebuild. I have some experience soldering and repairing electronics that this job feels to be within my capabilities, and im looking for a little guidance. I have most all of the smaller caps selected on Mouser for...
  4. J

    Help Identifying Really Old Caps - Pioneer SX-440

    I'm going through an old receiver and pretty much every cap is leaking fluid on the boards, so time to make the swaps... I'm trying to figure out what's going on with some super old caps I have. I have never seen anything like them and they have markings I'm not too sure about. Tried looking...
    • Jmkrull
    • Thread
    • capacitor identification pioneeer sx
    • Replies: 3
    • Forum: Tuners
  5. H

    Audio grade capacitor series codes for best brands 2022.

    I want to recap my Yamaha C4’s Function Board with good quality caps. Would probably just buy all Nichicon Muse (ES code) or Fine Gold (FG) and have done with it but it’s very hard to get the various cap sizes in all the specs because of distributors supply issues. As long as the cap is by a...
  6. J

    Realistic Optimus 2 tweeter replacement/upgrade

    I recently picked up a set of four realistic Optimus 2s from the original owner. He included a QTA-790 quad receiver (with working remote!) that he bought as a package in ~1974. Speakers are in very good physical condition including the woofers which appear to have fabric surrounds. However, all...
    • Jason299
    • Thread
    • capacitor crossover optimus realistic tweeter
    • Replies: 18
    • Forum: Speakers
  7. A

    Harman Kardon Citation 16a question

    Hi all, I have a question. When I turn on my Harman Kardon citation 16a amplifier the left channel comes on faintly amd after 10 minutes or so is up to normal amd same as the right channel. I don’t recall this doing that before so something g has definitely changed. Any one have any ideas...
  8. G

    Luxman GX-101 Equalizer: Adding Memory Circuit

    Years ago, I bought a Luxman GX-101 equalizer to add dancing lights to my RX-103/KX-102 system. I wanted to have it come on with the system, so I plugged it into switched power on the receiver. To my disappointment, it could not remember settings when disconnected from power for more than a...
  9. dankik

    Audio Caps for Recapping Vintage CD Player?

    I'm trying to determine if there is any advantage in using "Audio" caps (like Silmic II, Muse, etc) to recap the digital portion of a vintage Sony ES CD player (not the PS & analog circuits) vs 105 deg, low ESR caps. It would seem to me that there would not be any advantage to do this. Does...
  10. M

    Magnavox AstroSonic with 9300 amp

    Hello Audiokarma. I just picked up what I believe is a 1961 Magnavox AstroSonic record player with a "9304-10" amp. I have recapped most of the capacitors on this unit but I am hung up on the two .047 MFD capacitors in the amplifier. On my unit, one is 600WV and the other is 1600WV. I do...
    • MagnaZach
    • Thread
    • 9300 amp astro astrosonic capacitor magnavox sonic
    • Replies: 25
    • Forum: Tube Audio
  11. H

    C4 preamplifier dc fluctuation

    My C4 is sounding great but despite replacing the trimpots with Bourns the dc fluctuates quite energetically between -170mV and +180mV. Occasionally it will even stray further by another 100 or 200mV. Thoroughly checked all solder joins, switches cleaned etc. My question: are there any...
    • Hifibythekg
    • Thread
    • c-4 capacitor dc current preamplfier transistor yamaha
    • Replies: 24
    • Forum: Yamaha
  12. L

    Rate capacity meters

    Are the fluke 12, 12e, and the mesr100 v2 meters effective for incircuit testing of capacitors as per the utube? Draw backs? Bests ones? The fluke 12 looks simpler than the 12e! And the mesr100 even easier! Want to try out one, just don’t want to throw away my money!! Thanks Guys
  13. KNielsen

    Safty capacitor??

    Maby a noob question, but still learning... How do I measure with my oscilloskop if a safty capacitor is needed or a good choice at this location when a PSU is build from scratch? Or needed at all?? I know it's frequency related regarding the safty cap value, but how do I measure this? I have a...
    • KNielsen
    • Thread
    • capacitor oscilloscope powersupply psu
    • Replies: 9
    • Forum: DIY
  14. H

    Yamaha A1 restoration 2021

    Hi all. First question. Want to discharge those two big caps before I touch anything... Please can anyone tell me exactly how best I should perform this procedure? Apparently it was switched on in the last couple of days.
    • Hifibythekg
    • Thread
    • amplifer capacitor yamaha yamaha a-1
    • Replies: 463
    • Forum: Yamaha
  15. tcdriver

    Pilot SA-232 - Electrolytic Capacitors and Heat

    Pilot SA-232 – Electrolytic Capacitors and Heat A couple of weeks ago, I was in the barn doing some cleaning and found my Pilot SA-232 stereo power amplifier, where it had been sitting for the last thirty plus years. I decided to pull it out of storage and see if I could get it to play music...
  16. 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
  17. Moonwatcher

    Dayton 8uf capacitor wire broken

    Just wondering if it's possible to use a cap with a lead that is broken, down to the quick. Maybe gouge out enough material around it to solder in a lead? This is for a KLH 17 crossover calling for 8uf caps, and I was excited to find this one in a drawer, an 8.2, which I figure should work--if I...
    • Moonwatcher
    • Thread
    • broken capacitor crossover cap value klh 17
    • Replies: 25
    • Forum: Speakers
  18. K

    Melted inductor & blown capacitors AR9LS

    Hello AKers About 5 years ago I acquired a pair of AR9LS. I sourced new capacitors and resistors and updated the crossovers using the old inductors. In the last listening session involving home brew and elevated listening levels, an issue related to one of the speakers became apparent. Upon...
    • Kraco_Lover
    • Thread
    • capacitor failure inductor speaker crossover
    • Replies: 15
    • Forum: DIY
  19. Yamaha5000

    Capacitor & Resistor Schedules used by Yamaha

    Has anyone created a translation list of the symbols used by Yamaha? There are many components that are called for that appear to be a "Mystery of the Universe" Sorry to say I have discovered many more along this line.
    • Yamaha5000
    • Thread
    • cap identify capacitor resistor question resistors yamaha yamaha a-1 yamaha c-2 yamaha ca-1010
    • Replies: 57
    • Forum: Yamaha
  20. T

    SX-1080 Protection Board Lessons Learned

    Well I am done with the protection board. There are a few things it didn't fix and a few lessons I've learned. The replacement of the protection relay was not necessary as recommended. After I replaced it, I opened the old one. Not one sign of corrosion, pitting, burning, etc. It was...
  21. plndrm

    Fixed! 4300 Repair/Restore

    Hi Everyone, Sorry for the length of the post… I am looking to repair my fathers 4300 that is now in my possession, I broke it – I bought it. He ordered it on 5-Oct-1975 from a dealer in South (New) Jersey for $825. The following items were included; “Handbook of Instructions” (seriously who...
    • plndrm
    • Thread
    • 4300 capacitor film marantz quad receiever vintage
    • Replies: 36
    • Forum: Marantz Audio
  22. D

    Identifying guitar tone control capacitor

    I have an old Decca guitar from the 60's with this capacitor that I'd like to replace, but want to make sure I'm identifying it correctly. Lots of old codes out there. The picture isn't super clear, but it reads the following: nichicon .02(K) 50 Would that be a 20pF, 50V cap? Or does the...
  23. PE9ZZ

    Sansui TU-666 almost totally deaf on FM

    Got this cursed tuner with the iconic round tuning dial in today with the complaint "no stereo". Turns out the thing is deaf as hell. At first I thought the front end was fried as I could not detect a signal at 10.7 MHz at its output. I then discovered its LO was tuned 11.3 MHz above the receive...
    • PE9ZZ
    • Thread
    • capacitor if transformer tu-666
    • Replies: 12
    • Forum: Tuners
  24. M

    Sony TC-377 Mains Suppression Capacitor

    Hi All, The mains suppression capacitor on the Sony TC-377 I have just acquired is burned looking, I assume it has failed. I need to replace it. Could someone let me know of a suitable substitute? Regards, Max.
    • Mrnoname
    • Thread
    • capacitor sony supression tc377
    • Replies: 1
    • Forum: Tape
  25. davstev

    Crossover recap: Seeking guidance on Film Caps

    When it comes to replacing film caps, the options are many, and it's easy to spend a lot of dollars, only to experiment with very slight variances in sound. I was advised to replace the film caps in a crossover of a nice pair of Canadian-made Clements "Little D" bookshelf speakers from the...
    • davstev
    • Thread
    • bookshelf speaker capacitor film capacitor recap ribbon tweeter speaker speakers speakers & amps speakers crossover tweeter
    • Replies: 7
    • Forum: Speakers
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