• 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
tubelectron
SRPP ANZAÏ tube preamplifier
Replies
39
Views
4K
tubelectron
tubelectron
D
EL34 A2 Cascode SE triode
Replies
117
Views
8K
merlin el mago
merlin el mago
P
V1 12AX7 proximity to output transformer
Replies
19
Views
458
pjd3
P
Windcrest77
EL84 PSET schematic needed
Replies
4
Views
330
Windcrest77
Windcrest77
A
Something simple for a novice
Replies
15
Views
1K
Svytoslav
S
dubadub
GU-50 with 5k SE OPTs? Thinking about a new amp
Replies
47
Views
4K
Svytoslav
S
LeifB60
Tube amps
Replies
78
Views
4K
Svytoslav
S
laborer75
Schematic recommendations for a PP KT-88 with the gear I have?
Replies
12
Views
652
PurityAudio
P
ByronInPortland
Does anyone recognize this?
Replies
11
Views
748
JPS
JPS
P
Craigtone/Korneff 45 Amp transformer center taps…
Replies
63
Views
2K
mctavish
M
Tom7227
Sansui 1000EA Glass front
Replies
4
Views
212
nerdorama
nerdorama
S
Quick Sophomore Question About Resistor Voltage Rating
Replies
6
Views
225
Tubelab_com
Tubelab_com
lineup
6GM8/ECC86 Tube preamp for 30VDC supply
Replies
79
Views
21K
needtubes
N
berlinerpunk
Dynaco ST-70 modification help!
Replies
25
Views
1K
jgf
J
S
My second adventure: Simple Integrated
Replies
22
Views
2K
spectre6000
S
rhthatcher
Fourier Sans Pareil OTL
Replies
5
Views
1K
rhthatcher
rhthatcher
funk1980
Ayon Spark Delta 100Hz spikes in left channel
Replies
1
Views
90
funk1980
funk1980
T
Regulated Power Supply for Aikido Octal
Replies
2
Views
252
Tubenstein
T
markusA
What tubes for a OTL tube amp?
Replies
1K
Views
342K
atmasphere
atmasphere
SpreadSpectrum
Folded/Shunt Cascode driver for 211
Replies
51
Views
5K
zintolo
Z
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