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tube

  1. nicolonez

    Help me choosing a pre phono and TT matching

    Hi to all! I'm here to ask your opinion regarding a new phono pre-amp for my main system. Actually, I have a Dual 1019 TT with AT95E connected to a tube Fisher KX-100 amp, and I'd like to make a step-up. In particular, I have these cartridges to choose from: - Pickering XSV3000 (with LP Gear...
    • nicolonez
    • Thread
    • 1019 dual empire jbl mofi pickering pre-phono pro-ject tube
    • Replies: 22
    • Forum: Turntables
  2. teddyfreddy

    Good places/events in Wisconsin where I can go to look for vintage audio gear

    The title says it all, any members from Wisconsin with some recommendations for me? Are there any cool flea markets, electronics/radio shows, shops etc. where I can find good deals on vintage audio gear?
  3. U

    Snell Type-Ai… what next?

    Hi, new member here so apologies if this is the wrong place to post this. I am currently running an Outlaw Audio RR2150 receiver into a recently acquired pair of snell type-Ai’s. I love their beefy monolithic look and are an tremendous upgrade from my type-E II’s. The system sounds very nice...
  4. teddyfreddy

    Calbest 8211 stereo twin amplifier

    Hi all, I recently acquired a Calbest 8211, I brought it up on a variac and the left channel works, the right has a little hum and hiss and that's about it. First of all, would anybody know where I can find a schematic for this amp? It doesn't seem to be listed in the Sams photofact index. Also...
  5. Magnavox stereo 8002-10

    Magnavox stereo 8002-10

    Magnavox stereo 8002-10
    • Lou F Quincy
    • Media item
    • flea record player stereo tube
    • Comments: 0
    • Media category: Member's Tube Gear
  6. C_Little

    Nutone 2401 Tube Project

    A few months ago I was driving down my street and saw a bunch of stuff set out on the curb, as I passed by I saw the gleam of a few tubes catch the sun, my heart skipped a beat and I immediately slammed on the brakes! Turns out the guy down the street had ripped a Nutone 2400 intercom system...
    • C_Little
    • Thread
    • nutone project stereo tube vintage
    • Replies: 14
    • Forum: Tube Audio
  7. Dav3

    Mystery Pilot R 4700 "solid state receiver with tubes"

    A local junk store has a Pilot R4700 Receiver "solid state w/tubes" for sale. I'm guessing it might be a later model tube tuner with a solid state amplifier packaged together? (Serial number 400476). I was curious and did some internet digging but couldn't find anything via google or any of...
    • Dav3
    • Thread
    • pilot receiver tube
    • Replies: 16
    • Forum: Tube Audio
  8. A

    Tube preamp ground loop issue?

    A friend of mine builds tube preamps. After listening to one of the designs at his house, I had to bring one home it sounded fantastic. Clean, clear and dynamic. No issues...yet. I bring the preamplifier home. I proceed to remove my solid state preamp, and in place of that I put the new tube...
  9. Zack Sainz

    Erhard Audio

    Hey all! I just wanted to shout out to Holger and his gear, I have listened to KEF LS50s, KEF Q150, B&W 704 SII, Dynaco A25s, KLH 5s and even Sennheisser headphones! The Buddys and Aretha rock so hard and have such holographic imaging. In comparison with other amps that I have heard power all...
  10. G

    The Postal Stork dropped a Dynaco FM1

    Friday the postal stork's dropped me off a new baby project a Dynaco FM1. IMG_20211017_182533 by guitargrump posted Oct 17, 2021 at 6:29 PM The radio is in good general condition a bit dirty... The radio works surprisingly well for a antique... It has a nice warm sounding ambience... Just...
  11. zastin17

    Schematic For Magnavox 8302, EL84 Single Ended, "Refreshed Factory Drawing"

    I am making a habit of restoring really old poorly scanned schematics from factory units. And archiving them in Audiokarma for people doing "Google Searches" I take old nasty schematics, and clean them up in Gimp to be as clear, and precisely drawn as possible. Repairing "Pixel by pixel" This...
    • zastin17
    • Thread
    • 8000 8302 86xx console amps converted el84 magnavox single ended tube
    • Replies: 5
    • Forum: Tube Audio
  12. zastin17

    Dynaco ST-70, 1959, Freshly Drawn Hafler Schematic :)

    https://www.dropbox.com/s/k8bo95iab6bc9vu/Schematic_Dynaco St70 Final_2021-09-28.pdf?dl=0 I like to make older Schematic nice a "pretty" for my own archiving, but I rather share it, as maybe its still helpful today High quality PDF available above. Prints out very nice! This does not take me...
    • zastin17
    • Thread
    • 1959 amp dynaco halfer schematic st-70 tube
    • Replies: 4
    • Forum: Tube Audio
  13. Y

    How to upgrade stereo

    Hey all- For years I’ve been listening to music on my pioneer solid-state receiver SX-737, pioneer turntable PL- 530, and JBL L88 speakers. The set up looks great but the sound is only OK. Either not enough bass or kind of booming, or sometimes too much high and low and no mid, and overall just...
  14. B Side

    Help with Scott 222 : Red Plating

    Hi! I'm new to tube amps so asking for help to determine what is wrong with my Scott 222. I observed that the LEFT channel has a lower volume than the right channel. I did some rough testing with a phone app and the left channel seems to be about 4-5 decibels lower than the right channel. So...
    • B Side
    • Thread
    • help with amp red plating scott tube tube amp weak channel weak channel output
    • Replies: 29
    • Forum: Tube Audio
  15. kcline

    Current setup in Analog Room System Heathkit, Dynaco/ARC, 45 SET

    This is my current " final" setup for this system. Each amp has its own set of speaker cables, to change amps switch speaker cables and inputs. On floor on marble stand is my 45 SET amp globe 45,s and 6J5-GT tubes with 5AR4 rectifier. Right behind is Heathkit W-3AM monoblocs, they are running...
  16. Patrick_W

    Pilot Tube Console Auction — Fort Collins CO

    This looks very nice. It is a 6BQ5 amp so I assume it is a Pilot 232 amp inside. Also it has the Tuner/ Preamplifier to make it sound beautiful. No affiliation. But I know how much love Pilot tube components get. It would be great for an AK member to snag this...
  17. K

    Need help identifying missing tubes for mystery amp

    Hello, I'm working on restoring this small power amp. It looks like it came form some sort of turntable console or something since it has plugs to switch the power, an extra a/c plug, and maybe power delivery for an a/c motor. It appears to be stereo and single ended for each side. The power...
    • kanurys
    • Thread
    • amp power poweramp stereo tube
    • Replies: 21
    • Forum: Tube Audio
  18. AlexHempel

    Emory Cook and Gus Jose's "The Ultimate Amplifier" (Long Post Warning)

    I've always loved mono tube amps with big transformers, and I also enjoy browsing the auction site (these are both undesirable traits). In any case, I make a mental note of every large, interesting pre-1960 mono amp that pops up. A while ago (I think a year or so?) I saw an amplifier called the...
    • AlexHempel
    • Thread
    • 101-3101 316a amplifier cook langevin tube ultimate
    • Replies: 61
    • Forum: Tube Audio
  19. dave500

    Valve Amplification Company PA-45

    I acquired a VAC PA-45 amplifier set (amps & power supplies) in mint condition (gold & piano black finish). They operate flawlessly. The PA-45 is the 2-EL34 version of the PA-90 (4-EL34); they are monoblocks with separate power supplies. Does anyone have any information on them, or using a...
    • dave500
    • Thread
    • amp amplifier pa-45 pa-90 tube vac valve amplification company vintage
    • Replies: 3
    • Forum: Tube Audio
  20. dave500

    VAC PA-45 information

    Hello, I acquired a set of Valve Amplification Company VAC PA-45 (2 amplifiers & 2 power supplies). Other than the owners manual, I'm unable to find anything about them. They are in pristine condition; piano-black finish, and perform flawlessly. The PA-45 is the "little brother" of the...
  21. Moonwatcher

    Calrad tube tuner (c. 1965) with volume imbalance

    So this gutsy sounding little Calrad 202 tube tuner has a problem: the right side is far less gutsy than the left, and there is definitely a channel volume imbalance. Because I could immediately see that they were mismatched and not exactly what is called for on the chassis, I tried replacing...
    • Moonwatcher
    • Thread
    • 202 calrad channel imbalance fm mpx tube tuner
    • Replies: 2
    • Forum: Tuners
  22. L

    Sansui 1000a knobs interchangeable? (Treble/bass + Volume/Mode)

    Are all the knobs on a Sansui 1000a interchangeable? (i.e. the underlying shaft of each knob fits the other knobs) A 1000a on its way to me, in working condition but missing two knobs: the volume and mode knobs. These ones seem to be smaller and without the metal “fin” of the other knobs (Bass...
  23. W

    Contact info for Dared audio?

    Hello all - Does anyone have a suggestion on contacting Dared Audio? Messages through their main website (in Hong Kong?) go unanswered and I’m hoping someone her can direct me to a North American source (distributor, dealer, etc.) so I can get some info. The remote on my SL2000 preamp has...
    • WJBinSC
    • Thread
    • dared pre pre amp preamp remote tube
    • Replies: 2
    • Forum: Tube Audio
  24. W

    Dared SL 2000a tube preamp remote replacement?

    Hello all - I recently put this preamp back into my office setup and found the remote (the small blue one that looks like it goes on a keychain) to be non-functional. Replaced the battery and the red light is now continuously on. Tried to use it and the preamp had a squealing electronic sound...
  25. zastin17

    EL34 Tube Amp Wiring Dummy Check Please! :)

    One of the major annoyances on my very first build ever, was figuring out all the tips and tricks after already mostly assembling the amp. Drilling more holes at this point would be difficult, and before continplating starting a 2nd build, I would like to get some of these tips/tricks drilled...
    • zastin17
    • Thread
    • 6l6 amplifier diy el34 tube valve
    • Replies: 3
    • Forum: Tube Audio
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