• 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
rdf
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Is 50 degrees C too hot?
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4
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2K
Sch3mat1c
Sch3mat1c
G
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Using LEDs to bias grid voltage?
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12
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3K
Saurav
S
karma
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trio amp up in smoke-ya really up
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11
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4K
karma
karma
A
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First time builder, need advice.
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26
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5K
fdegrove
fdegrove
Fuling
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Radical (insane) PSU ideas
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21
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4K
Fuling
Fuling
T
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2a3 or otl on an fullrange coral
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5
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2K
karma
karma
R
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MC275 Hum Conundrum
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0
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rkic
R
E
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Russian 5U4GB
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5
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3K
fdegrove
fdegrove
N
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Resistor popped...need help for replacement in Yaqin amp
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8
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3K
benny
benny
T
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diy tube amp
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10
Views
4K
benny
benny
karma
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Frankenstein tube amp
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6
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3K
redwine1118
R
R
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6C33C substitute
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5
Views
4K
ruangrit
R
N
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simple phono preamp circuit needed
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4
Views
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mashaffer
M
Frazzled
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Check this eye candy out....
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2
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2K
markp
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L
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Instruments Of Amplification - DIY
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3
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2K
tom1356
T
A
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my EL84 pre-amp with schematic
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3
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3K
analog_sa
analog_sa
K
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Multiple projects
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11
Views
3K
BHD
BHD
karma
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hardcore tube night light?
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4
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4K
Layberinthius
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R
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schematics
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6
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2K
MIKET
MIKET
3
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help for DHT bias in PP
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2
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1K
James D.
J
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