• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Tubes / Valves

All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum
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Transformer wiring (Need Help)
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fingerboy21
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rvrazvan
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Class-d Hybrid
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rvrazvan
rvrazvan
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Small Speakers for 5 channel single ended amp
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54
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ryuji
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Positive feedback for amplifier input stage
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mashaffer
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Tango 11146 Output Transformers ?
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HP8903B
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How Much is Too Much Filtering?
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ryuji
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More junk from China
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PWR RYD
PWR RYD
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Tube Preamp Dock
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Rockstar0215
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debk
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Multiple filament windings
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Eli Duttman
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use of 12ax7 and 6v6 as 6T9 alternative?
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Tom Bavis
Tom Bavis
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Rusted OT Issue?
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DF96
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Dylan
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6DJ8/6922 rolling... any general consensus on these?
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2
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Can you identify this AMP??
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6
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HollowState
HollowState
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need help with frist tube amp
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HollowState
HollowState
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Testing Western Electric 437a with TV-7D/U ?
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HP8903B
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finished breadboard project
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5
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Rundmaus
Rundmaus
sbelyo
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Mullard 12AU7 tests bad when running grid leakage test?
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6
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DF96
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Music Angel MENG Series EL34 Push Pull Tube Integrated Amp
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4
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SleepWake1990
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kruesi
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JJ KT88s and other octals
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35
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ronenash
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NYAL OTL3 Amps
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Naidu
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