• 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
A
DIY CAT SL1 preamp
Replies
111
Views
76K
VintageAmp
VintageAmp
T
Needs help with EL84 valve
Replies
10
Views
415
The driver
T
Windcrest77
What construction flaw factor causes a Western Electric "B" grade 300B tube?
Replies
26
Views
1K
Windcrest77
Windcrest77
M
Intermittent Static on ARC REF 3 Preamp
Replies
69
Views
12K
baudouin0
B
Herr Grau
One channel of A88-T stays cold. Most propable problem?
Replies
13
Views
312
Herr Grau
Herr Grau
dubwoofer
PTP Cornet Octal build revisited
Replies
7
Views
257
as_audio
A
Antealta
Yes another 2A3 design I am ready to be judged
Replies
42
Views
2K
mbrennwa
mbrennwa
M
6SL7/6BL7 driven Electra-Print 300B
Replies
45
Views
2K
maynard999
M
K
Croft Series 7
Replies
60
Views
5K
tiefbassuebertr
tiefbassuebertr
J
My Croft series 5 schematic
Replies
28
Views
1K
jpk73
J
Z
Layout suggestions needed: simple cheap tube amp
Replies
11
Views
935
batteryman
B
dukua
6KV6/6KM6 SE triode
Replies
19
Views
837
wg_ski
W
Nixie
ZOTL and ferrites
Replies
80
Views
24K
kamonjira
K
mogliaa
4P1L DHT Line Stage
Replies
2K
Views
577K
merlin el mago
merlin el mago
J
Lowther LL-26 copy build questions
Replies
15
Views
678
hooman
hooman
C
6SN7-2A3 SE Amp - James Transformers
Replies
44
Views
18K
PurityAudio
P
wrenchone
829B Ratings
Replies
3
Views
301
Robert H. Gribnau
R
B
P.Millett DC filament supply
Replies
14
Views
1K
mdpaudio
M
B
EL34 Baby Huey Amplifier
Replies
2K
Views
407K
arteom
A
Z
Strong local feedback + light global or the opposite?
Replies
134
Views
6K
waltube
waltube
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