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tube amp

  1. F

    Thinking about buying this Dynaco ST70, is it worth it for a beginner?

    Hey guys, I've never been on this forum before but I was refered here and thought you might have some good info. I can get my hands on a ST70 for around $350, but only until tomorrow. I've been really interested in getting into speaker set ups and especially tube amps as a fledgling headphone...
    • Fredark
    • Thread
    • beginner buying diy dynaco dynaco st70 fix st70 tube tube amp used
    • Replies: 4
    • Forum: Dollars and Sense
  2. BRW

    Fisher President VIII Value?

    I recently purchased a Fisher console (President VIII) and am interested in hearing what you think today's value might be. I noticed the MSRP was around $2600 (back in 1963) but not sure about current market. I am new to tube amps but excited to listen to it! All components seem to work as...
    • BRW
    • Thread
    • console fisher president tube amp viii vintage
    • Replies: 33
    • Forum: Dollars and Sense
  3. artsybob

    Rare 1960s Columbia Music Library Console Info

    One of my relatives is trying to sell her mother's early 1960's Columbia console that was built for members of the Columbia Music Club back then. It was made to resemble a bookshelf with the "books" being record holders. I'm intrigued by this unit with its handsome control panel. Information on...
    • artsybob
    • Thread
    • columbia music club 1960s console stereo tube amp
    • Replies: 6
    • Forum: Tube Audio
  4. The fojizzle

    Need HELP!!

    hey guys I need ur help!! I wanna build a cabinet or buy a vintage one and put all new guys in it. I'll put a pic of what I'm looking to buy/build. However, I'm new to turntables and I wanna make sure I get all the components I need so I can make sure it all fits. Could someone please help me...
  5. The fojizzle

    Technics sl-q2 setup question

    So I JUST bought a Technics sl-q2 turntable that was refurbished. Paid $120 for it. Got to listen to it. Sounded GREAT. This is my first turntable. I really want the sound of vintage tube but with today's new tech combined. I found this and it came recommended. Now I'm finding I still need a pre...
    • The fojizzle
    • Thread
    • help new guy pre amp sl-q2 technics tube tube amp
    • Replies: 0
    • Forum: Tube Audio
  6. M

    want to know what this is

    I have this tube amp? but there is no power switch and I just want to know what exactly it is so I can see if Id have a use for it. To me it looks like an amp with right and left inputs in front and speaker inputs in the back. But im new to tube amps/tube anything. Just want more...
  7. artsybob

    Capacitor Questions

    I am in the process of recapping my Realistic SAF-40D integrated amp. One of the filter capacitors I bought to replace an old one isn't exactly the same values. Would I be able to replace a 20uf 50V capacitor with a 25uf 50V? The amp also has two two-sectioned can caps that are each rated 40uf...
    • artsybob
    • Thread
    • capacitors tube amp tube amp help
    • Replies: 4
    • Forum: Tube Audio
  8. MadcapLaughs

    New to me HH Scott LK 72

    So I finally made the leap into tube electronics after a "solid" three years of very nice classic integrateds from Yamaha, Sansui, etc. I just picked up an LK 72 for a good price, it had new orange caps, an array of original but in spec Scott tubes, and was cleaned and biased. The transformation...
  9. H

    Any thoughts on hooking up four speakers to Fisher 500B

    Hi everyone, I'd like to hook up a second set of speakers to my 500B, doesn't appear there is second set of hookups. Any thoughts on how to accomplish this? I assume I can buy an adapter of some sort that will separate the signal into four terminals for four speakers, but wanted to check with...
  10. tommydoan84

    Great sounding Tube preamplifier kit recommendation!!

    Dear Ak members , I am in need of your help and recommendation for a great sounding tube preamp kit in the sub range 1500k. I had several good DIY built amplifiers so I only need a good tube preamp to pair with. So far my searches and studies through multiple sources come out to 2 candidates...
    • tommydoan84
    • Thread
    • audio advice audio analogue diy preamplfier tube amp valve
    • Replies: 3
    • Forum: Tube Audio
  11. M

    Eico AF-4 Phono Preamp options, other questions

    Hello all, I've been enjoying my AF-4 for many years with almost no maintenance other than some new caps and a thorough cleaning when I found it. I previously used it with digital sources, but lately I've been using it almost exclusively with a turntable. Since the AF-4 only has...
  12. smurfer77

    Vintage Luxman showdown: MQ60, MQ70, MQ80, SQ38FD, ?

    I'm rebuilding the above mentioned amps at the moment in between other projects. I've done the MQ60, parts for the MQ80 are here, I've made a parts list for the SQ38FD, and MQ70 is yet to be inspected. All of this could be finished within either 2 weeks, or 6 weeks (I have some travel 2 weeks...
    • smurfer77
    • Thread
    • luxman mq60 mq70 mq80 sq38fd tube amp vintage
    • Replies: 51
    • Forum: Tube Audio
  13. BrandonS2185

    Cleaning and restoring console components

    I am in the process of restoring a 1960 stereo console and am having trouble with cleaning the 50+years of dirty hand grime/grease/oil on the control knobs and faceplates. The pieces are both painted plastic (for the knobs) and painted metal (for the faceplates). I don't want to scrub them too...
    • BrandonS2185
    • Thread
    • cleaning restoration project tube amp vintage audio
    • Replies: 4
    • Forum: DIY
  14. sjfloat

    MC30 Restoration -- Preservation First! (and caps)

    Oh my... I have a couple of MC30s to restore. I don't know when I'll get the opportunity to dive into this. But looking in on them, I was appalled at the extent to which they had degraded. I live in a relatively humid region and my first concern is to clean up the exteriors and take whatever...
  15. BassKulcha

    Is five months a normal time to wait for tube amp restoration? (Analog Engineering Associates)

    It's going on almost five months waiting on a fairly straightforward restoration (not modification) of an ST-70 from a reputable & well-regarded tech outfit. I do understand that good work takes time, and I definitely don't want to be overly impatient, but is five months (and counting—) a normal...
  16. PCKIDZ

    Seeking suggestion for Chinese 6P3P kit mods

    I dusted off my soldering iron and put together a Chinese kit. The performance is quite satisfactory - high clarity and acceptable motor boat hum (when not playing) - it also looks pretty good! The quality is good overall though the connector sockets could have been better quality at that price...
    • PCKIDZ
    • Thread
    • 6p3p chinese kit mods tube amp
    • Replies: 1
    • Forum: Tube Audio
  17. D

    The eternal speaker quandary: size versus sensitivity?? Help desired!!

    So I keep going around and around and around on this, so I might as well put it on Audiokarma, so someone else can also go around and around( big grin)! I am looking for speakers for my third set up. This is in a bedroom/office, Where the speakers will essentially be in the near midfield, 4 to...
    • Dr.Willie
    • Thread
    • sensitivity size speakers tube amp
    • Replies: 6
    • Forum: Speakers
  18. reverend13

    Integrated Amp w/Great Phono Pre

    Hi all -- I currently have a Scott 299 (A) and love the tube warmth, however, I'm looking to change things up a bit (its phono has been troublesome on occasion as well). I don't have enough space for an amp and a separate preamp, so I'm looking for an integrated that combines both and that has...
  19. ScooterMcTav

    Adding a Pre Out to a Luxman R-1050

    Morning All, I currently own a Luxman R-1050 and truly enjoy the sound from it. However, I have also been presented with an opportunity to get my hands on a Jolida JD-302BRC, which although an integrated, has no phono input, and overall limited inputs. So my thoughts were to use my R-1050 as...
  20. K

    capacitor voltage

    Is it ok to use same capacitor value but higher voltage? Say an example is i want to use a22uf 500v where a 22uf 50v was used,since i already have some ,,only difference is the size ,correct?,no issue doing that ? Thanks for any replies
  21. J

    GE Phonograph

    Im looking so some help. I recently purchased an old phonograph as a cool statement piece and if I was really lucky I would be able to give it the TLC that it needs to play beautifully again. The back has been removed which Im guessing is where I would have found a serial number so I can find...
  22. SudoSpencer

    Mcintosh MAC 1500 Bad tube? Bias Adjust?

    I came across a Mac 1500 the other day. After firing it up on a dim bulb tester and seeing no issues, I then proceeded to plug it in normally and try to set the bias. It's supposed to be .7v for all 4 of the output tubes. I tried this and 3 of them got there, the 4th tube won't go past about...
  23. Olivesaxer

    Complete Noob Tube Question

    Good morning AKers, I have gone through about 10 pages of posts on the Tube section and haven't found the answer to the insanely basic question that I am looking for. Got the tube bug after grabbing up a LD MK3 a few months ago. I am currently using a SX1250 (1978ish) pushing two Monitor...
  24. musichal

    ST-70 Custom Died - Where To Start?

    Perhaps I just found why I shouldn't own a tube amp. Music was playing, at low-ish volume. My wife was standing beside the amp and I was looking at her, in conversation. There was no flash, no pop or buzz or noise of any kind. No odors. The music quit playing, the tubes faded. Won't fire...
    • musichal
    • Thread
    • custom dynaco musichal st-70 tube amp
    • Replies: 187
    • Forum: Tube Audio
  25. grantly

    Musical Paradise MP-401 mk2 thoughts, etc.

    First, a little background and context: about 4 months ago, I got a bee in my bonnet and wanted to switch out my existing setup in our main living room area. I had a Yamaha amp, some Monitor Audio bookshelves, and a Sunfire sub, and I listened to most music through my refurbished TD-160 super...
    • grantly
    • Thread
    • klipsch mp-401 mk2 musical paradise tube amp
    • Replies: 7
    • Forum: Tube Audio
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