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phono

  1. Richs_Trains

    Marantz 3250B Phono Section Transistors

    So here's the story, got a 3250b cheap and beat up. Got it cleaned, de-oxit, and recapped all the electrolytic caps. Powered it up and all is good except lots of white noise on the phone section. I found 2SA970's and 2SC2240's and replaced those. Still had the noise, tried to find 2SC1885's...
    • Richs_Trains
    • Thread
    • 2sa970 2sc1885 2sc2240 3250 3250b marantz phono transistors
    • Replies: 5
    • Forum: Marantz Audio
  2. S

    Phono Preamp Advice...Dynavector Karat 23RS

    I have a Rega Planar 3 turntable with a Moth MK3 tonearm and a Dynavector Karat 23RS. I need advice on which phono preamp to purchase because I am new to moving coil setups. The Schiit Mani is in my price range and claims that it is compatible with both MM and MC setups...
  3. cleverdick

    CR-800 Ph-oh-no!

    In my quest to cure a noisy RIAA stage, I did discover a fractured joint at D401 on the so-called EQ Sheet. (PITA to get to, mind!) Now, in this case, somebody before me had fitted a 330R, 5W resistor in the supply line - non-original and not shown on the schematic. Off-load the supply does...
    • cleverdick
    • Thread
    • cr-800 phono phono input
    • Replies: 4
    • Forum: Yamaha
  4. powerpcme

    Looking for an electrical engineer to design a phono pre-amp!

    So i've been playing with the idea of making a simple phono pre-amp that I could build myself. I thought about it some more and I figured if I could find someone who knows what they're doing and they could design a PCB with the best components and we could make a DIY kit for it. I also got a...
    • powerpcme
    • Thread
    • phono pre-amp turntable
    • Replies: 18
    • Forum: DIY
  5. T

    Sansui AU-101 Phono channel (right) issue

    I possess a Sansui AU-101 amplifier, which I like quite much. Starting a few years ago, the right channel of the phono input began to make incidentally an annoying crackling kind of noise. It wasn't constant, but still very present and disturbing. Some wiggling with the RCA-connector sometimes...
  6. B

    Advice on an MM phono pre

    Hello, first post in a very long time. I recently upgraded my integrated amp from a Marantz PM5004 to a Classe CAP 151 (huge leap), which doesn't have an integrated phono pre, and I'm looking for some advice on what to get in the $300 range. Some options I've been looking at are the Schiit Mani...
  7. txc500

    Nakamichi MC 500

    I recently purchased a few items, one being a Sony PSX7 turntable. The turntable has an Ortofon step up transformer and a Nakamichi MC500 MC cartridge. I am having a hard time finding any info on the cartridge. Does anyone out there have one or maybe had experience with one?
    • txc500
    • Thread
    • cartridge mc500 moving coil nakamichi phono
    • Replies: 5
    • Forum: Turntables
  8. SpicySammich

    If you had a choice between these 2 preamps...

    The Pro-Ject Phonobox DS or the Gram Amp 2 SE Which would you pick and why? I'm running a Debut Carbon with Orto 2m Blue -> Sansui 2000a -> Focal 807v's Thanks P.S. I spin mostly dub/reggae and classic punk and alternative with occasional bouts of jazz and metal.
  9. tusntuk2

    White noise in NAD 7140 phono - transistors?

    Finished recapping the NAD 7140 with great results - POWER and dead quiet floor in the main amp, Problem is, phono preamp generates white noise by itself, no input, and I'm having trouble identifying replacement transistors. Any ideas? Thanks so much!
    • tusntuk2
    • Thread
    • nad noise phono transistor equivalent
    • Replies: 0
    • Forum: Solid State
  10. H

    Upgrading / Updating a Threshold FET ten/pc

    I am going through an oldie but goodie FET ten/pc, and I changed all the electrolytic caps and I would like to upgrade the caps in the signal path. Has anyone changed these caps? I see four 10uf axial polyester caps as well as four 1uf axial caps in place, I dont have a schematic of this unit...
  11. MadcapLaughs

    Yamaha A1 integrated amp (phono issue)

    Hello, I just purchased a Yamaha A1 integrated amp. While the line stages sound great I'm noticing some problems in the phono stage. 1. The gain levels to achieve slightly loud sound output means I am turning the knob past 12 o'clock each time. (High output MM cart used). I have efficient...
    • MadcapLaughs
    • Thread
    • amp repair help help needed integrated amp phono vintage amp yamaha yamaha a-1
    • Replies: 76
    • Forum: Yamaha
  12. R

    Pioneer SX-650 Left Channel Failing Only On Phono

    Hi! I have a Pioneer SX-650 receiver I bought just over a month ago, supposedly freshly serviced, from a record store. In the past couple of weeks, the left channel has been falling out randomly. I swapped the L-R on my turntable (Pioneer PL-510A) and the left still fell out, so I know it's in...
    • Remac81
    • Thread
    • channel failure phono pioneer sx-650
    • Replies: 6
    • Forum: Solid State
  13. D

    G-7500 Phono

    I recently picked up a G-7500. The thing looks and sounds awesome and is definitely an upgrade from my early '90s pioneer receiver that I was using. The only issue I am having is with the phono preamp. The right channel is working and sounding great but the left channel is not playing anything...
  14. reverend13

    HH Scott 299 Phono Channel Left Side Intermittent

    Hi all -- I have a Scott 299 that has been having problems with the left side intermittently going quiet but coming back on. Only occurs on the Phono channel, as I do not have this issue on the Tape channel. No crackles or static when this happens. Connection with the speakers are good...
  15. S

    Fisher 400 Phono Hiss in one channel

    My 400 has alot of hiss on the left channel and I can't figure it out. All pretty new caps resistors, new tubes. Ive attempted to switch tubes no luck. The hiss is the same hiss that is normal in the other channel but at half way on the volume its louder than the hiss on the opposite channel at...
    • streetwise
    • Thread
    • fisher 400 hiss phono
    • Replies: 13
    • Forum: Fisher
  16. Ishq

    Onkyo TX-37 - Fix or buy new?

    Greetings, New to AK. Tell me what to buy or do I fix vintage Onkyo TX-37. I'm the original owner of the Onkyo TX-37. Bought it in high school with money from my first job. I've used her ever since as my only receiver. She still works but channels cut in and out and crackle (mostly right...
    • Ishq
    • Thread
    • fix hd hd radio onkyo phono phono input
    • Replies: 7
    • Forum: Solid State
  17. Tdogzthmn

    Any NAD C368 owners?

    I'm looking to get a new integrated amp and came across the new series of integrated amps from NAD. In particular the C368 seems to have all the features I would want and need such as phono and digital inputs plus an output for a sub. I've owned the NAD D3020 previously and thought it was a...
  18. M

    Preamp Question

    I'm new here and this is my first post. My MusicHall MMF phono-preamp stopped working so, in desperation, I dug my Carver CT-107 preamplifier out of the closet and have my Pro-Ject Essential ii plugged into its phono inputs. Using the Carver's pre-outs into a tape input in my Rotel RSX 1055...
  19. A

    KA-7300 phono crackle and pop

    Hi AK I hope some of you might have some pointers for a recent Kenny purchase. I bought a KA-7300 with a defective phono stage (as advertised). The amp otherwise works as expected but produced no sound at all through the phono inputs. The Tuner/Aux inputs that also pass through the board...
  20. Richs_Trains

    2265B Rebuild Questions

    Hey All, Got a 2265B that was supposed to be DOA, but it had some mechanical problems with the selector switch and I now have AM/FM audio, the thing I have not encountered before, any other input produces garbled signal. You can make out the music, but it is completely garbled and distorted...
  21. bberkom

    Fisher 500c Phono Stage Replacement Tubes

    I just picked up my first tube amp, a Fisher 500c. The phono section of the amp has been recapped, but when using it, there is a lot of tube noise, I think a little too much. I do not think those tubes have been replaced, so I'd like to do that. Looks like they are spec'd as 12AX7 tubes, but...
    • bberkom
    • Thread
    • fisher fisher 500c phono
    • Replies: 9
    • Forum: Fisher
  22. perr0

    Marantz 2238 - Phono stage issues

    I just bought a 2238 receiver. Didn't have a chance to test phono input before buying, only FM and Aux. Tested phono at home and noticed that left channel volume is MUCH lower than right channel. Made a series of tests to try to pinpoint root cause. Results below: 1. Both channels have a low...
    • perr0
    • Thread
    • marantz noise phono receiver
    • Replies: 7
    • Forum: Solid State
  23. G

    Blond moment??

    Hi, I've bought a second hand vinyl set up piece by piece from ebay. A Yamaha TT-300 turntable Rotel RA8408X3 amplifier A pair of Mission 760 monitors I switched on and I have that common problem of the set-up not seeming to have much volume. I can turn it up full and it gives me a plesent...
    • greenhill
    • Thread
    • amplifier amplifier hum cartridge mission phono pre-amp rotel turn table volume yamaha
    • Replies: 7
    • Forum: Turntables
  24. Stereofro

    C2200 Phono Section

    I am using the phono input switched to AUX with my Lehmann phono preamp plugged into it. I see that the tubes are still glowing? The manual states that the tubes should not be active if the input is labeled AUX. Can someone clarify this for me? Thanks!
  25. chaskelljr63

    Vinyl, NAS, and DAC based Headphone Rig...

    Good Morning Everyone: Let's just say that I have a friend who has moved into a shared housing situation, and he wants to have a high quality high-end audio rig, but he's not allowed to have any loudspeakers on the premises. He wants an analog, computer based nas, and dac based headphone rig...
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