• 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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Mullard EL84 ID
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ifsixwasnine
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schematic request for transformer with 4k primary and UL taps
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kevinkr
kevinkr
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Russian tube equivelants
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kavermei
kavermei
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Using diode for biasing
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45
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SY
SY
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Borbely hybrid Tube-MOSFET opamp
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drumanart
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Highbred Amp "TUMOS" Sounds good?
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Jen-B
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el156
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My last el84 PP tube amplifier
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11
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Soonerorlater
Soonerorlater
Stee
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the SuperHybrid
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0
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Stee
Stee
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Tecon Model "55" final mods(?)
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4season
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Hammond P-T125E OPT
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2
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el156
el156
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Tube Sockets for oddball miniatures
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5
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mobyd
mobyd
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Ultrapath - Advantages?
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5
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Sch3mat1c
Sch3mat1c
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Need schematic for Bell 2420 amp
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4
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tasar
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el156
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Phono preamp with c/em2
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4
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Arnulf
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raypalmer
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Couple idiot questions....
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34
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raypalmer
raypalmer
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6as7 SE OTL
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7
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spirakos
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12AY7 plate current
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3
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workingonit
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Resistor values at supply to anodes
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2
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bob91343
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OPT identification
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jazz
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New bie: some questions, want to start DIY pre amp
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11
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boywonder
boywonder
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