• 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
Vortex
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Criticise please!
Replies
12
Views
3K
Vortex
Vortex
O
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Negative Voltage using tube rectifier?
Replies
5
Views
3K
ohynot
O
C
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really basic question
Replies
6
Views
2K
planet10
planet10
N
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811a Tube Cap Size
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2
Views
2K
billr
B
P
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SV811-3 SE : Lots of questions...
Replies
11
Views
8K
fdegrove
fdegrove
P
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Old OP Transformer
Replies
5
Views
2K
PeteMcK
P
A
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suggest circuit with gain of 60
Replies
17
Views
3K
Fuling
Fuling
R
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Has anybody built 6BG6 or similar OTL amp?
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2
Views
3K
SY
SY
M
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300BSE series
Replies
3
Views
2K
AKSA
AKSA
S
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How about this 12au7 pre?
Replies
2
Views
2K
richwalters
richwalters
D
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valve pre amp
Replies
4
Views
3K
soudoblack
S
protos
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Critique for circuit of great value 805 SET?
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5
Views
3K
analog_sa
analog_sa
S
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poweramp topology
Replies
9
Views
3K
planet10
planet10
JojoD818
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5814/12AU7 Preamp?
Replies
15
Views
8K
JojoD818
JojoD818
H
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Newbie asking help
Replies
11
Views
2K
adamamp
A
C
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what is the simplest possible triode amp?
Replies
20
Views
4K
SY
SY
M
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limits in transient time
Replies
1
Views
1K
James D.
J
digi01
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12ax7 preamp,need help.
Replies
13
Views
4K
digi01
digi01
johnferrier
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Valve-Heart Recording Studio
Replies
4
Views
2K
cogsncogs
cogsncogs
C
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Would this work
Replies
5
Views
2K
cuallito
C
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