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phono

  1. ocdecio

    Marantz 2245 C701/C702

    This is the first time I see 2.2uF tantalum at the C701/C702 phono board. I've seen threads about upgrading them from 0.47uF to 1uF I wonder if I go from 2.2uF to 1.uF that would be considered a downgrade?
  2. ceylon

    bottlehead reduction help

    anyone have PDF manual?
    • ceylon
    • Thread
    • bottlehead diy kit phono tube
    • Replies: 4
    • Forum: Tube Audio
  3. ajmich

    Perpetuum Ebner REX A-4 Turntable / Changer Issues

    Seeking information for restoring this classic P-E record changer, Model REX A-4. It is an approximate replacement for the missing changer in my 1955 Grundig 8050/USA hifi set. The 3 small belts are on order (not shown here). The motor does not turn; I just discovered that the voltage...
  4. T

    Dual hs 36 Ceramic cartridge pre amp for MM carts?

    Not too sure if this is the correct board to ask this but I was servicing a hs 36 and I wanted to replace the original ceramic cartridge with a MM cartridge until I realised that the pre amplifier is only built for ceramic cartridges. Is there any easy way to modify the internal circuit of the...
    • TrevorBarten
    • Thread
    • dual modification phono pre amplifier repair service
    • Replies: 3
    • Forum: Solid State
  5. Zach Nelson

    High output Grado Master3 cartridge.

    As the title reads, I have a HO Grado Master3 that I have been using for about 100-ish hours. My question is, does anyone else have this cart, or any cart from the Timber line, and what do they run them at on the phone stage. It is a moving iron cart. I'm confused if I should be running it on MM...
    • Zach Nelson
    • Thread
    • cartridge grado phono phono pre amp turntable
    • Replies: 3
    • Forum: Turntables
  6. richiem46

    Fisher X-202-B Phono Section Access.

    I am in the process of restoring a Fisher X-202-B that I recently obtained. I have done most of the restoration work but in the phono section the left channel is not working. Tubes not an issue and normally I could just trace through the circuits and find the issue. The phono section of the...
    • richiem46
    • Thread
    • fisher phono x-202-b
    • Replies: 10
    • Forum: Fisher
  7. davstev

    Gain requirements: Ultra LOMC cartridges

    Hi all, In the past, I've used a selection of MM and MC cartridges. However, just recently, for cheap I acquired an ultra low output MC, a MC-20 by ortofon, and it needs a re-tip. The output is super low: 0.07mV. (This is the MK1 version, with the purple/blue body, circa 1980, much lower than...
    • davstev
    • Thread
    • cartridge gain head amp lomc mc moving coil ortofon phono step up transformer sut
    • Replies: 30
    • Forum: Turntables
  8. Johnny_Law

    C32 Bad Phono Channel - Can't Figure Out Edit: Figured it out

    My C32's phono is dead in the right channel, and I've isolated the issue to the input switching board. Here are the measurements (this is the Right channel phono section of the input switching board 045-023). I'm stumped and looking forward to figuring this out. -All transistors were pulled...
  9. P

    Ground buzz on all mono cartridges in both channels. None on stereo...help needed.

    So recently I have picked up two Zerozone 834P clones to use with both turntables I have. (Technics SL-QL1 and SL1200 MK2) The MK 2 is running an AT-VM95ML and AT-VM95C with no problems, but both the Grado MC+ and AT-Mono LP/3 cartridges buzz when connected. I tried an experiment where I tied...
  10. A

    Nakamichi CA7A Phono Stage Signal Loss

    Hi all, Seeking opinions and guidance from experienced folks here. I think I'm going to have to bring the issue described below to a repair shop. 1) Problem description: Sound from my analog source dips intermittently; left channel only. 2) Sound returns for a limited time (anywhere from...
  11. reverend13

    HH Scott 299D - Power But No Audio

    My apologies in advance as I'm a novice at this yet would love to learn, so I appreciate any feedback :) I have an early-model 299D that powers up and tubes light up, but no sound is coming out of any inputs (also checked cables and speaker connections). I'd appreciate any troubleshooting...
    • reverend13
    • Thread
    • hh scott 299d no audio no sound phono phono input scott 299d
    • Replies: 113
    • Forum: Tube Audio
  12. V

    KA-7002 Phono stage mystery

    Hello. I have been working on a nice KA-7002 that had a slight preamp power hum. I recapped the tone board and replaced the c458 transistors with KSC1815s. All was well, until I got super OCD and decided that the phono stage had too much background hiss when volume was turned up. I set my sights...
  13. its_chicken!

    Sansui AU-505 Phono Stage schematic help - Capacitance

    Hello everyone, I'd love some help in determining the capacitance of the phono stage in my AU-505 amplifier. I have attached a pic of the schematic. Any help is much appreciated. Cheers.
  14. J

    Rega Planar 2 /NAD 3020A - quiet output on one channel

    Hi I am new to AK and would like to thank you in advance for any help you can give me! As a teenager I loved my hifi but after I got married and space was limited it got put in a box in the loft...where it has stayed for the last 30 years... until last weekend when I connected my TT (Rega...
    • John1968
    • Thread
    • amplifier fault finding phono quiet output turntable vintage amplifier
    • Replies: 12
    • Forum: Turntables
  15. F

    Juicy Music Tercel II construction manual

    Hi all. I have just purchased a Juicy Music Tercel II phono preamp, but the construction manual is missing. Does someone have this in PDF that you could send me?
  16. tahoe_snow

    Dynaco PAS2 phono low frequency filter

    I’ve been working on a Dynaco PAS2. I upgraded the power supply with a board from triode electronics. I was going to call it done as the remaining components appear to be within spec, but I’m having a problem with the phono section. In the left channel there is a very low frequency rumble. It...
  17. klamsoss

    Adding a phono input to X-100-B and to a model 400 receiver using Tape Head input

    This has been discussed in bits and pieces elsewhere but I wanted to bring it all together into a single thread that is accessible for folks like me, who don't have quite as much expertise as others. I will begin with the X-100-B since it's the one I understand better. I'll need help addressing...
  18. Paul McShart

    Can you guys help me identify this old Grado Cartridge?

    Hey, I was wondering if you guys can help me identify this cartridge and what replacement stylus I can get for it. It came with a Technics SL1700 but I cant find any info on it. It says x2 + but nothing really comes up. Also not sure if the stylus is worn since its the only table ive ever had...
  19. Paul McShart

    Good Phono Pre for Pioneer SX990

    Hey I was just wondering if any of you guys can direct me in the right direction with getting a dedicated phono pre for this stereo. My turntable is a Technic Sl-1700 and speakers are ADS l620s. I know the pioneer isn't very high wattage but I'd love to keep it as its passed down from my dad...
  20. moodyj2000

    Vintage Receiver for Turntable Setup

    First time post so don't eat me alive too much. I have done my research but to be honest I am all over the place and need some advice. I have a cheap Audiotechnica turntable that I am looking to upgrade to probably a Fluance RT-85. I know there are better but for the price they are right where...
  21. tlite

    Worth keeping Marantz 2235 Just for Phono Stage?

    Is it worth keeping a Marantz 2235 just for the phono stage? I'd then run it into a more modern receiver (Onkyo NR808) from the pre-outs to an aux in. One reason is that I have some 86dB sensitivity Elac DBR62's that I really like, but think they need more power to sound good at lower volumes...
    • tlite
    • Thread
    • 2235 amplifier marantz onkyo tx-nr808 phono phono stage preamp
    • Replies: 14
    • Forum: Marantz Audio
  22. kcline

    Aiyima Tube -T3 Phono Pre-Amp

    I had this for around 30 days or so. This popped up on Amazon at 10% off plus I had another discount I applied to it. It delivered to me for under $50.00!!. Unlike the Little Bear phono pre,s I had in the past this worked right out of the box with no hum. I placed this in my Analog Room #1...
  23. daveyh

    Sansui 990 clicks of relay in phono mode

    OK. Here's one for you. I have a Sansui 990 that clicks off the relay on the left channel when the volume is turned up. No sound except very low volume. The right channel is nice and clear. When I unplug the right channel RCA connector and and leave the left plugged in and turn up the volume it...
  24. "ItsTooLoud"

    I need a phono preamp

    Friends! I bought my first turntable recently. I've had an important-to-me record over ten years that I've never heard. Since I bought my $5.00 British turntable I've found several more local thrift that I believe I'll enjoy! Neither receiver in my home speaks vinyl. I think I need a phono...
  25. S

    Marantz 1122dc pop/crackling on phono only

    Hi AK community, Hoping someone can help me find some answers ASAP on a 1122dc I just acquired. It was a little dirty but otherwise in fine condition. Everything seems to be smooth with the exception of the phono inputs. When I play records, there is a slight but very noticeable crackling/pop...
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