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tube amp

  1. Tubeglowpio

    Voice of music 1448

    Just bought one of these online after reading a few good reviews, I'll post some pics when I restore it. I really need to locate a schematic so if anyone has one please link or pm me. If anyone has any info or insight on this amp let me know, they seem kind of rare.
    • Tubeglowpio
    • Thread
    • 1448 help schematic stereo tube amp voice of music
    • Replies: 20
    • Forum: Tube Audio
  2. kcline

    Fair 818 output transformers & 1490 power transformer

    Going thru my storage. I found these Look to be audio outputs and matching PT. Audio are marked only Fair 818 PT is marked Fair 1490 no other marks. Any thoughts out there? Could not find anything about these online, only thought was maybe made for Fair Radio? I find that unlikely as they...
  3. B

    Shipping a Heathkit Tube Amp

    Hello Audiokarama, I've lurked around the boards for years when I've needed electronics info, but this is the first time I've posted some questions of my own. So here's question 1. I need to ship the unit shown here in the pics. I would love a step-by-step list of best practices for...
  4. Tubeglowpio

    How bad is this power supply ringing?

    So I'm wiring up this amp this weekend, finally had the time. I've never used a clcl filter before and know very little about ringing in a power supply, basically just know I want as little as possible. I ran an emulation in psud2 and believe I set it up right and these are some of the results...
    • Tubeglowpio
    • Thread
    • help power supply psud2 stereo tube tube amp
    • Replies: 104
    • Forum: Tube Audio
  5. Ahuja stereo tube amp

    Ahuja stereo tube amp

    30 watt 4×el 84 3×ecc83
    • Aref
    • Media item
    • tube amp
    • Comments: 0
    • Category: Equipment Library
  6. Ahuja 32t

    Ahuja 32t

    Ahuja hrc 32t series tube amp
    • Aref
    • Media item
    • tube amp
    • Comments: 0
    • Category: Equipment Library
  7. E

    Magnavox 9304 / Imperial Update

    Thanks for all the advice in the other thread, last night I got the amp up and running, and it sounds great! I replaced all the electrolytics with Panasonic caps in the amp, radio/preamp and mpx. Added a few terminal strips for them to sit on. For safety, I replaced the filter cap that...
  8. Dig22

    Magnavox 175-67 - channel 2 help needed

    Hi, I'm a newbie, and aware of the high voltage dangers. I picked up a Magnavox 175-67 TT console with pre-amp/receiver. I replaced a few of the caps, added a fuse and 3-prong plug. Channel 1 works fine. But Channel 2...I'm stumped. The balance pot doesn't do anything. I'd appreciate...
    • Dig22
    • Thread
    • magnavox 175-67 tube amp
    • Replies: 19
    • Forum: Tube Audio
  9. Tubeglowpio

    Dgse1 ultra linear

    Hey everyone, I've built a couple tube amps in the past but finally ended up pulling the trigger on building a dgse1 since I've heard mostly good things and love the sound of the maggie 8601 I suped up. I changed a few things from the schematic but mostly just the power supply to adjust the...
    • Tubeglowpio
    • Thread
    • dgse1 el84 maggie magnavox tube tube amp tube stereo ultra linear
    • Replies: 8
    • Forum: Tube Audio
  10. tk1769

    Vintage Stereo Tube Amp : Advice Wanted For First Time Purchase

    OK, I know this has probably been asked a gazillion times (or as my kids say, a googolplex)...I have searched the previous forums but I can not seem to get the answer I am looking for (but please feel free to share a link if you know of one that addresses this). I am looking to purchase my...
    • tk1769
    • Thread
    • stereo amplifier system advice tube amp vintage amps
    • Replies: 20
    • Forum: Tube Audio
  11. chris savage

    BOC model B-40 SC ?

    These two devices just landed in my lap. I know nothing of tube technology. One is a tube amplifier, manufacturer looks like BOC, model b-40 SC. These other is a tube tuner, HH Scott. Any info on this (rainy in South Central Indiana) night?
  12. D

    Magnavox 93 series ideas

    Hello! I have a 93 series Magnavox stereo amplifier. I was planning on restoring it and using it as a desktop amplifier but I recently had another idea. I'm very much into tube guitar amps and wondered if this amp would be a candidate for conversion. It uses a tube set that would likely be...
  13. Tubeglowpio

    Anyone uses tube guards?

    Have thought about using tube guards in a build but always wondered how you would switched the tubes out? Would you have to flip the amp and remove the nut then pull the guard off, swap tubes and put guard back on? Or is there enough room to get a grip on the tube and wiggle it out of the socket?
    • Tubeglowpio
    • Thread
    • amplifier build diy stereo tube tube amp tube guard vacuum tube
    • Replies: 11
    • Forum: Tube Audio
  14. stevland

    1958 Philips F5C10A Tube Amp / Speaker

    Hi all, * * EDIT * * I misnamed this thread. I should have called it Philips AC395A Tube Amp / Speaker. Philips F5C10A refers to the console to which this speaker was a companion. I'd like to share a rare gem and ask for some advice. Backstory My grandparents bequeathed me their vintage...
    • stevland
    • Thread
    • mid century philips speaker and amp pairing tube amp
    • Replies: 46
    • Forum: Tube Audio
  15. circlefx

    Nobsound 6N8P+6P3P

    Hi folks. I've seen a few threads about these NOBSOUND amps. I've got the kit, the parts look pretty quality, not high end, but should be good enough for me. I've got a technology club and a couple of students and I are going to put this together. I've taught them to read and follow a wiring...
    • circlefx
    • Thread
    • 6n8p 6p3p kit nobsound tube tube amp
    • Replies: 60
    • Forum: Tube Audio
  16. F

    Tubes for Unison Research's Simply Italy?

    Hello there. I own a Unison Research Simply Italy, which I adore. It uses two EL34 and two ECC82 (12au7) as rectifiers. So recently I decided to upgrade the 12au7's. After doing a lot of research, I went with the Psvanes. Right out of the box the sound was clearly more open and detailed than...
    • fedocable
    • Thread
    • 12au7 biasing ecc82 psvane simply italy tube amp tubes unison research valves
    • Replies: 2
    • Forum: Tube Audio
  17. HairySatchel

    The Fisher 500B & 500C

    I hate passing up a good deal. Except sometimes good deals don't always turnout to be good deals when all is said and done. I have an opportunity to buy both pieces for 350 total. They supposedly work but will need some TLC. Should I go for it? Fisher 500B by HairySatchel posted Mar 4, 2018 at...
  18. MadcapLaughs

    Altec Segovia 874a vs University Medallion xii Speakers

    Which one should I go with? Both are the same cost, I have had a guy holding these segovias for me for a while and need to decide ASAP. There are a nice pair of university medallion xii for sale too. Both are same cost roughly....which would you choose? 35 wpc tube amp is going to drive them...
  19. H713

    A few more DIY Tube amp Questions

    After a bit of pondering after my last post, I've got two designs in mind. I'd prefer not to spend the $250 on a pair of ST-70 output transformers. I'd like to keep the output transformers under 200. I'm trying to decide between building an "ST-70" with Edcor transformers (probably have to be a...
    • H713
    • Thread
    • dynaco st-35 st-70 transformers tube amp
    • Replies: 1
    • Forum: DIY
  20. weegee

    How much does it cost to get into tube hi fi?

    Not know what they sound like, I wanted to give tube audio a try. I looked up tube equipment on eBay and they seemed to run thousands of dollars per piece. Is that about what they cost? Seems pretty costly to try tube audio. Is it even worth it or should I stick with modern equipment. Thanks
  21. H713

    Looking for DIY Tube amp design

    New to the forum, I'm looking to build an amp in the 25-40W range, and I was wondering if anyone had suggestions for a good push-pull design using EL34s or 6L6s. I'm open to other tubes as well, but I'd like to stick with common and inexpensive tubes (preferably not KT88s). Given that I'm...
    • H713
    • Thread
    • 6l6 diy tube amp el34 tube amp
    • Replies: 4
    • Forum: DIY
  22. MadcapLaughs

    Altec Segovia Speakers

    Hi all, Can my Scott lk 72 handle 4ohm speakers that have a high efficiency rating?? (I know there are 4ohm taps but can it actually handle it)? I'm looking at Altec Segovias and they are 4ohm but rated in the mid 90s for efficiency, can anyone verify efficiency specs?. Also, Will the increase...
  23. bkall

    JBL M40 15" speaker ?

    Has anyone ever seen a JBL M40 speaker. The serial # is 10003 It is marked "custom manufactured by James B Lansing Sound Inc Los Angeles Calf. The 15" speaker is inside of a sano tube amplifier. I cannot even find a shred of info on this speaker
  24. artsybob

    Next Project: Andrea CPR-A2S Console

    Now that I'm done restoring my Realistic SAF-40D integrated amp I've been looking for a new project to work on. I think I'll start working on my uncle's circa-1961 Andrea CPR-A2S stereo console. I couldn't get many decent interior shots, but it looks like it has a pretty sweet amplifier with...
    • artsybob
    • Thread
    • 1961 7199 andrea radio company andrea tube console console stereo el84 tube amp
    • Replies: 8
    • Forum: Tube Audio
  25. Tubeglowpio

    Which tube stereo to build or buy under 1500

    Hey everyone, so this year I've been saving up my money and with Christmas and my birthday around the corner I've been trying to think of either buying or building my main audio rig except for the phono stage. I am currently using a amp I built with magnavox 8601 transformers. I do like the set...
    • Tubeglowpio
    • Thread
    • 1500 bottlehead help new amp oddblock rh84 tube amp
    • Replies: 23
    • Forum: Tube Audio
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