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tube

  1. david winter

    Fisher X-101-C - what modern 7591A would be best ?

    Hi, I'm currently working on a Fisher X-101-C. The 7591A were all done. It's recaped and I haven't checked posts about improvements . I wanted to know what modern type of 7591A would work best considering the voltages. I also read somewhere that fixed bias models should have the 330K grid leak...
  2. Tubeglowpio

    Magnavox Berkshire Schematic

    Hey everyone, picked up this nice Magnavox Berkshire last night for $45 bucks, they were asking 60 but the radio didn't work as they said. I was worried about the transformers being bad and my fears came true today when I did a voltage test, the high voltage winding is bad. The speakers and...
    • Tubeglowpio
    • Thread
    • 150 berkshire magnavox magnavox console mono tube
    • Replies: 7
    • Forum: Tube Audio
  3. bluenote79

    Pioneer sx-1000TW VS Pioneer sx-6000 ?

    What would the main differences in sound be between these two receivers? I currently own an Sx-6000. I really like the warm sound I get from it, combined with my Fisher XP7 speakers. There is an Sx-1000TW for sale that the owner says sounds almost like a tube amp. It's been recently...
  4. rg65

    Long shot Fisher restoration

    I have Fisher 800C that needs to be restored. I once had contact information for a shop in Southern California that specialized in Fisher tube gear. The owner operator built audio equipment for Eric Clapton out of his garage in the 60's. If anybody knows of this person and has contact info...
    • rg65
    • Thread
    • 800-c 800c fisher tube
    • Replies: 7
    • Forum: Tube Audio
  5. destroyerzx1

    Cayin ta-30 recap to Mundorf sgo

    I was originally going to do Mundorf silver oil but found some sgo on ebay for not that much more. after doing hrs and hrs of research in the crossovers and tube phono stage that im still working on I decided to also do the cayin ta-30 aswell, i got it for a whopping $500. it allegedly came with...
    • destroyerzx1
    • Thread
    • amp cayin intergrated mundorf recap sgo silver gold oil ta-30 ta30 tube
    • Replies: 11
    • Forum: Tube Audio
  6. Patrologia

    Turning on VTVM for the first time

    I picked up an old VTVM (RCA WV 97A, actually it does ohms too), and wonder if all the same cautions apply as with other old tube stuff. Dim bulb (I don't have a variac), best to change the old caps, at least the electrolytics, etc? I haven't even had a chance to open it up yet, but anything...
  7. T

    Which turntable to my new system

    Hi everyone I am currently assembling a new system after doing quite some reading on this forum (big thank you). A HH Scott 340-B tube receiver is on its way and I am working on the adoption (or kidnapping) of some Cornwall speakers. I am really interested in a Thorens TD-124 but it seems...
    • toulcaz
    • Thread
    • cornwall pro-ject rega technics thorens tube turntable yamaha
    • Replies: 29
    • Forum: Turntables
  8. thr33p4c

    Harman Kardon Citation I - To Mod or Not To Mod?

    Fate has blessed me with two Harmon Kardon Citation I tube preamps. One was beautifully built but also "well loved." The other was drastically modified over the years and is missing a lot of original parts. The "well loved" unit had a pretty messed up face plate, broken balance pot...
    • thr33p4c
    • Thread
    • citation citation i harman kardon led modification mods tube tube preamp
    • Replies: 21
    • Forum: Tube Audio
  9. R

    Adding tube influence to a solid state Phono

    Hi so I want a tube preamp I have a great sounding Yamaha CR420 I use my turntable more than any other source. I think I have narrowed my selection to an Phono preamp (tube) ...or a preamp buffer (tube) that has knobs for EQ I want to know which is preferred and where to put it in the...
    • Ryan Case
    • Thread
    • phono pre amp pre amp help preamp tube tubes
    • Replies: 3
    • Forum: Tube Audio
  10. TellMeWhy

    Starter tube amp recommendation- simple, small, affordable?

    Hi everyone. I have the chance to buy some very sensitive speakers (Wharfedale E70 / 94dB / 8 ohm) and fancy having a dabble in tube amp sound. I have never tried tubes before (old or new), but am pretty happy with my vintage solid state Marantz 2270 / Dynaco A25 set up... I am wondering if...
    • TellMeWhy
    • Thread
    • budget tube amp tube valve amp wharfedale e70
    • Replies: 30
    • Forum: Tube Audio
  11. Tubeglowpio

    Picked up Magnavox 8802 console

    Finally found a Magnavox stereo console in my area, paid more then I should have but it fit in the back of my car and worked to a point and had the stereo mpx decoder deal, turn table might be shot but haven't ruled it out and I have a backup in nice condition so may finally have a fully working...
  12. FireGuruMN

    1000a weak in one channel

    I have a Sansui 1000a and some caps and new tubes that were patiently waiting on my shelf for me to provide them some attention. Today was their lucky day because I was feeling in a "tube" mood. Since the previous owner said he had already powered it up I figured I would verify that it still...
  13. 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...
  14. artsybob

    Fisher TFM-300 Up and Running!

    Finally got my Fisher TFM-300 tuner restored and made it part of my stereo system! (I'm running it through my Realistic SAF-40D integrated tube amp). Sounds great, and I just love the way it lights up from the red stereo beacon light to the grid pattern the metal case projects onto the wall. I...
    • artsybob
    • Thread
    • fisher fm tuner hybrid solid state tfm-300 tube
    • Replies: 10
    • Forum: Fisher
  15. C

    Magnavox record and am/fm console

    Hey everyone, This is my first post I have been lurking on and off for a while and have been looking to find an old record player and by chance yesterday was in a local thrift store and happened upon this console with no price. I asked them how much for as is and since the needle was not...
    • Coop442s
    • Thread
    • am/fm console magnavox record player stereo tube
    • Replies: 9
    • Forum: Tube Audio
  16. onesojourner

    Multi-section Capicitor Identification? Magnavox 175cc-67

    I have finally gotten most of the spring chores wrapped up and I am back on my Magnavox 175 project. I am a bit stuck on this multi section can. I have been able to identify on the can and confirm in the diagrams what capacitors I need. I am struggling to figure out the positive side of the new...
  17. 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
  18. VINTAGEO

    Desireable Consoles? Possible forum category?...

    I'm not usually one to even give a console stereo cabinet a second look, that is untill I saw this one! This thing is a work of art from the late fifties I gather from the very limited amount of info on it. What I do like about it, it is relatively small, 44x16x28, it looks fantastic with its...
  19. N

    Pilot 245-A Integrated Tube Amp B Channel Issues Looking for Advice

    Hi all, So I recently purchased this Integrated Amp, and I must say, I am shocked at how good it sounds. What a beautiful machine. However, after listening for a few days, I noticed that the B channel was lagging behind the A in volume. I cleaned the potentiometers on the balance, volume...
    • njm
    • Thread
    • 12au7 b channel dead tube pilot 245-a repair tube
    • Replies: 8
    • Forum: Tube Audio
  20. J

    Voice of Music Model 815

    Hey guys, new to the forum and trying to gain some knowledge. I've been trying to do my research on the V-M Model 815. There is a good deal for on here in town and I'm considering jumping on it. I have never owned a ceramic cartridge record player and am a little weary to buy one. I have...
    • jdjohnsey
    • Thread
    • cartidge ceramic model 815 tube v-m vinyl voice of music
    • Replies: 6
    • Forum: Turntables
  21. healyc139

    Fisher 400 - Rebuilt but sounding muddy

    Hey everybody, So I found a decently priced rebuilt Fisher from a reputable seller on eBay, bought it and it sounded incredible. Such amazing sound, I've been very happy with it up until early last week. I had the radio playing and noticed it sounded just a tad bit muddy, kinda 'boomy'. Then...
    • healyc139
    • Thread
    • fisher 400 receiver tube
    • Replies: 36
    • Forum: Fisher
  22. 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
  23. FireGuruMN

    Heathkit W5M too quiet

    Oh no another W5M restoration! I had a pair sitting on the bench with a whole pile of expensive tubes and replacements parts sitting next to them for about a year of so. I thought it would be wise to learn how tube amplification works before tearing into these amps. I was originally thinking...
  24. davstev

    Phono on Audio Research SP-14 not working

    Hi All, I've just purchased a near mint A-R SP-14 preamp, with original boxes, and manual. Pristine. I would be very happy, but, I can't get a sound out of the phono stage. There's one 6922 tube in the stage, which lights up when powered up. The line stage works fine, btw. MM cart into the...
    • davstev
    • Thread
    • arc audio research preamp sp-14 tube
    • Replies: 7
    • Forum: Tube Audio
  25. 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
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