• 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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interstage transformer
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8
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4K
bewivie
bewivie
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1.5VDC Heater Supply For #26!?
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5
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2K
Zekk
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vacuum tubes type 10 and UX201A
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19
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9K
andyjevans
andyjevans
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Phono Stage
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7
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Jamesuk1
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original philips AD-9058
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1
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pointy
pointy
wrenchone
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AES is At It Again...
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9
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wrenchone
wrenchone
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Help on PP EL 34 from Claus Byrith
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7
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Andrzei
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Help for Tango 300b amp
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1
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45
4
nhuwar
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Mercury vapor rectifier tube question
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13
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9K
SY
SY
rsumperl
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Sweep tube info/specs
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2
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darryl_h
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john65b
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What happens when Heater Cathode voltage is exceeded?
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13
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wa2ise
wa2ise
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Recommend me a tube...
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20
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Kris9999
K
S
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r-core output transformers...
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10
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kavermei
kavermei
aardvarkash10
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Help reqd - 115V PTX on 230V
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20
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3K
kavermei
kavermei
2
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Replacing the cathode resistor with a current source in SE ?
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12
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4K
rdf
rdf
Jaap
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Powerdrive for PP amp with local feedback and pentode driver ?
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5
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3K
Yvesm
Yvesm
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Se Amp with Push Pull Transformer
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19
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3K
revintage
revintage
Bas Horneman
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6AX4 datasheet question
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6
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kavermei
kavermei
A
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Bias Drift
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9
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3K
AmpBuilder225
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P
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Intercomponent ground loop hum
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15
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Sheldon
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