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tube amp

  1. cmcguire

    Yaqin MC-10L missing bass

    I'm experiencing an odd problem with a new to me Yaqin MC10. Things seem to be working properly but the amp sounds excessively trebly and there is almost no bass below 80hz. The speakers are phased properly and rated to 92db so they should be efficient enough to be happy with this mid powered...
  2. Kasanay

    Looking For Info - 6AU6 Output Tube

    A while back, I was looking for information on building a amp with 6AU6's as the output tubes. A found several examples including a site that featured several dozen different schematics and information - all using the 6AU6 as the Output or Power tube. The problem is - I did not bookmark the site...
    • Kasanay
    • Thread
    • 6au6 6au6a diy tube amp tube amplifier
    • Replies: 4
    • Forum: Tube Audio
  3. Tubeglowpio

    Magnavox Tube Console Preamp Needed

    Hi to everyone, been wondering if any of the Magnavox tube console pulls like the set and pp 6bq5 amp benefit from a pre amp? I tried using my Bottle head crack as a preamp and it sounds bad compared to the Magnavox alone, less bass and less of that El84 magic. Is this a problem with impedance...
    • Tubeglowpio
    • Thread
    • console magnavox console stereo magnavox tube tube amp
    • Replies: 57
    • Forum: Tube Audio
  4. Kasanay

    Odd Output Transformer Needed

    I got a crazy idea to build this little headphone amplifier from a 1960 something magazine article that I stumbled upon (attached). Problem is, I have now rounded up nearly all the parts except the elusive output transformers! The article says I could use a Triad S-13 X. There is nothing special...
    • Kasanay
    • Thread
    • diy headphone amp transformers tube amp vintage audio
    • Replies: 7
    • Forum: Tube Audio
  5. mattking52

    Looking for Conrad-Johnson PV10B schematic

    Hi all, Do any of you fine people happen to have the schematic for the C-J PV10B preamp? I have one on the way to me now via UPS from a nice gentleman in Alabama, and I'm curious to see how exactly it differs in circuit design from my current PV10AL (other than the obvious addition of a phono...
    • mattking52
    • Thread
    • conrad johnson pv10b schematic tube amp
    • Replies: 7
    • Forum: Tube Audio
  6. fishookred

    Interference problem with Schiit Valhalla amp

    I'm having some trouble with my tube amp. I'm in the middle of ripping some vinyl albums to my computer and I am getting this awful hum. https://www.dropbox.com/s/uenwdb7t018btog/interference.wav?dl=0 when I plug directly into my sound card the hum goes away so I am assuming it is being picked...
  7. J

    Fender Deluxe Reverb Repairs

    Working on a Fender Deluxe Reverb model 763, have everything in the movies below Movie 1 Movie 2 Movie 3
    • JRUBIN
    • Thread
    • 763 deluxe reverb fender fender deluxe reverb tube amp
    • Replies: 18
    • Forum: Tube Audio
  8. C

    Does anyone rebuild the electrical chassis?

    I have a Magnavox 'American'. It's 100% original and in great shape. But it needs to have it's amp (electrical/tube) chassis rebuilt. I am sure the Electrolytic caps and tubes will need to be replaced. Probably some other components also, but I will leave that up to the person with a lot more...
  9. Mr. Soundman

    Lucked out on a Lance Cochrane signature cake pan tube amp...

    Bought this little guy a while back and didnt know it was handcrafted by Lance Cochrane, who I found out lives close to me, until I removed the bottom cover and found his custom note and signature on it. I just got some new old stock tubes to run through it tonight. Im really lucky to have this...
  10. HeathS

    Pilot Model 500 tube amp from console power socket

    I have a pilot 4500 console with a model 500 tube amp and I am trying to figure out how to install jumpers to power the amp so I can use it without the tuner / turntable. Does anyone know where the jumpers go on this particular amp?
    • HeathS
    • Thread
    • jumpers model 500 pilot tube amp
    • Replies: 2
    • Forum: Tube Audio
  11. dyche01

    Stromberg-Carlson? Anyone?

    I am looking at an old Stromberg-Carlson AR 415 mono amplifier. Apart from a few passing references, I have not found much discussion of Stromberg-Carlson tube amps in this forum. Anyone have any general thoughts? Any favorites? Any dogs? Any specific thoughts on the AR 415?
    • dyche01
    • Thread
    • stromberg-carlson tube amp
    • Replies: 58
    • Forum: Tube Audio
  12. kjack48230

    I felt the Power of the Dark Side, hence, I grabbed a pair of MC30's to rebuild

    After much deliberation I pulled the trigger on a pair of MC30's. Got them to restore so my first question, who should I go to to get all new caps and resistors? I am mechanically inclined and was a electronic tech back in the service so I know all the pitfalls of not respecting electricity...
  13. vaathi

    How good is AES Sixpacs

    They use 6 EL34s on and 12Bh7 and EL84 on each of the monoblock. Are they really good? I'm thinking of sinking serious money into it.
    • vaathi
    • Thread
    • aes sixpacs cary dennis had el34 tube amp
    • Replies: 1
    • Forum: Tube Audio
  14. TravAndAlex

    Dynakit ST-35 - quiet static (popping noise) in one channel. Help!

    Hi. I'm hoping you can help me. I have a Dynakit ST-35 kit that I've used daily for a couple years. I love it! Unfortunately, today I noticed that one channel has an occasional static noise (quiet popping sort of noise). I tried disconnecting the pre-amp and I swapped tubes left to right...
    • TravAndAlex
    • Thread
    • dynaco dynakit st-35 troubleshooting tube amp
    • Replies: 101
    • Forum: Tube Audio
  15. mccuskerkt

    HK Citation II. Well there's yer problem

    Picture pretty much sums it up. Time to order the ole McShane power supply. Keep it here, more to come.
  16. D

    Jolida JD 1000 vs Rogue Cronus Magnum

    I am upgrading my Jolida to either the 100 watt a side, or the Rogue 100 watt, both are around $2500 retail. wondering if there is a noticeable difference between them. I've heard that Rogue is American made, with American parts, and Jolida is somewhat Chinese parts? But I read a review that...
  17. D

    Magnivox 9303 restoration help

    Hello, I am new to vintage tube amps. I do have some electronics experience. I've built guitars and done complete re-wiring of cars, etc. but I'm completely new to the amp restoration game. I recently aquired a Maggie 9303 amp. I found the original schematic and plan to make sure everything...
    • drewski13
    • Thread
    • 9300 series 9303 maggie magnivox mod modification restoration tube amp
    • Replies: 3
    • Forum: Tube Audio
  18. L

    Allied Knight 83-YX-797 vs Y-786

    I have an Allied Knight 83-YX-797 that I am currently working on restoring. I found an Allied knight Y-786 for sale earlier and was wondering if anyone knew what the differences between these were. The only differences I see are the faceplate and knobs are different styles. Otherwise it is the...
  19. D

    Tube Console - Restore or Cannibalize for the Amplifier?

    Years ago I purchased a Sears Silvertone console stereo at an estate sale for $10. It has an AM/FM Stereo tuner and a Medalist record changer in it. When I got it home, I turned it on and it took awhile to come on. I knew then it was a tube model. It sounded really nice after it warmed up. I...
    • Decibel_116
    • Thread
    • console stereo sears silvertone tube tube amp
    • Replies: 13
    • Forum: Tube Audio
  20. A

    Power transformer for Harman Kardon A224

    I was recently given a broken Harman Kardon A224. Supposedly the power transformer is broken. I am a complete newbie to tub amps. How can I get a parts/spec list? How can I get a service manual? Does anyone know the type of power transformer it uses? AK
  21. Giarcpnw

    Newbie looking for first tube project. Maggie 9308 or like suggestions?

    Hey all, Been living in the Solid State world for a while but was quite blown away at how good a friend's console pulled Maggie 9308 sounded. Now I'm wanting to try out the other side. Looking for suggestions on amps that are attainable semi cheaply and can be worked on. I like to tinker and...
    • Giarcpnw
    • Thread
    • 9302 9308 amp fisher maggie magnavox rca scott tube tube amp
    • Replies: 4
    • Forum: Tube Audio
  22. Kasanay

    What Do We Have Here?

    Can anyone guess what all this is about? I'm guessing a power supply on the left (maybe 1 of 2) and either a pair of amps on the right. Tube are (3)7025's and (1) 5879. There is also a 6X5 in the power supply. I think this is a special order setup, possible built by a big-name company (Fisher?)
    • Kasanay
    • Thread
    • mirko paneyko mp engineering tube tube amp tube amplifier
    • Replies: 38
    • Forum: Tube Audio
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