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valve amp

  1. M

    OTL Amplifier DIY Project

    Dear All, I recently got an OTL kit-based tube amplifier I am not able to figure out which tube will be used on power section however pre stage is working with 12ax7. I tried using EL34 on power section, but it was not working it means some other tube will be used. Original pictures are...
    • Musa Zahid
    • Thread
    • @diy otl valve amp
    • Replies: 5
    • Forum: DIY
  2. jcpcali

    Tube Amp Cabinet Thermal Protection

    Hey guys way smarter than me! Hoping for some expert advice on enclosing my Fisher 500C into a custom made desktop. I'm designing a 24" deep x 48" wide office work station into a converted closet in a guest room. It will also contain a Hitachi sr-2004 solid state receiver. I'm worried about the...
    • jcpcali
    • Thread
    • fisher 500 heat transfer tube amp valve amp
    • Replies: 19
    • Forum: Tube Audio
  3. A

    Codename Revolver

    This EL34 single-ended valve amplifier has been a labour of Love for me. I handcrafted it using the best components I could afford. All wiring is done point-to-point. I also did the copper metalwork and woodwork myself, except for the volume knob and feet. The amplifier is switchable between...
    • Ajay-L
    • Thread
    • 12at7 diy el34 pentode triode single ended tube amp valve amp
    • Replies: 14
    • Forum: DIY
  4. Andyrlb

    LEAK TL12.1 mono valve power amp & pre

    My latest find is this apparently rather special Leak point one TL12.1 mono valve power amp and matching Rc/Pa remote control preamp. Untested and not used since 1979 . Totally original too and with all required cables .
    • Andyrlb
    • Thread
    • leak mono amps preamp valve amp
    • Replies: 6
    • Forum: Tube Audio
  5. 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
  6. L

    Bi-amping open baffles

    Hi, all, Hoping someone might be able to provide me with some advice. I recently built a pair of open baffle speakers with the assistance of Martin King (MJK) and his mathcad worksheets. I used Eminence Alpha 15A woofers and Alpair 7 full-range drivers on 18" x 24" baffles. I also build some...
    • leer0y
    • Thread
    • bi-amping open-baffle valve amp
    • Replies: 7
    • Forum: DIY
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