• 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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How to eliminate the "white noise" for the 300B tube amp?
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13
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7K
Angelpat
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F
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Voltage multiplier vs transformer for preamp HV power supply
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1
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4K
Matt BH
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T
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does tube bias drift like silicon devices
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1
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1K
jcx
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T
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MC3500 with 807 tubes and modern driver tubes
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11
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4K
bear
bear
jane
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Unity coupled circuit amplifier.
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6
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15K
Svein_B
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M
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Best EL34 For Triode mode
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0
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2K
Monjul
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Z
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Advice needed re repairing Audio Research VT100
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4
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4K
sajti
sajti
B
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REN904 for linestage?
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7
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5K
bequerel
B
J
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Chinese Output transformer for 300B SET
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23
Views
17K
Yvesm
Yvesm
J
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Senior Project Tube Preamp
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9
Views
2K
ilimzn
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P
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Can 110V Quad II´s be configured to 220V?
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13
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3K
kevinkr
kevinkr
J
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Hi, New member just bought k272a kit from Oatley
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4
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3K
Jack5
J
C
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Urgent advice on Chinese purchase please!
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0
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1K
cr0wl3y
C
revintage
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6GM8 above 8mA/24V
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2
Views
1K
revintage
revintage
cabsvrt
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Genalex VS Mullard 12AT7 & 12AX7's HUGE DIFF?
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11
Views
10K
jlsem
jlsem
rsumperl
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~17-18w sweep tube with large plate cap
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8
Views
2K
Alastair E
Alastair E
T
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Rectifier tube blows
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27
Views
4K
M Gregg
M Gregg
B
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First Post Here
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28
Views
3K
Blind Lemon
B
albertli
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6GM8/ECC86
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4
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2K
albertli
albertli
T
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New build of P-P PCL86 Amp
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4
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6K
tubemax
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