• 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
drteming
Tube music distorter?
Replies
9
Views
375
drteming
drteming
T
FILAMENT POWER SUPPLY: RECTIFIER BY MOSFET OR SIC ?
Replies
1
Views
205
euro21
E
hooman
Montreal Audio Festival 2025
Replies
1
Views
173
hooman
hooman
MissionX
Fisher Console Amp Channel output
Replies
14
Views
621
MissionX
MissionX
C
External OPTs : Any reason why not?
Replies
17
Views
547
baudouin0
B
B
Unknown Pre tube for circuit. Help Please
Replies
50
Views
3K
Tom Bavis
Tom Bavis
Wavebourn
One more 4P1L SE
Replies
1K
Views
473K
grataku
G
G
Help to understand why EL84 SE amp clipping
Replies
47
Views
2K
gijser
G
kmtang
CARY CAD-805-RS balance input circuit
Replies
2
Views
249
kmtang
kmtang
gerrittube
Add a subwoofer output to driver stage
Replies
0
Views
109
gerrittube
gerrittube
Zero Cool
Unhumping a Magnavox
Replies
19
Views
571
Zero Cool
Zero Cool
kmtang
Anyone tried using the switching power supply module for tube amp
Replies
42
Views
5K
wrenchone
wrenchone
K
Audio Note Quest 300 wiring 120v
Replies
9
Views
271
kiran1103
K
G
Audio Research D115 repair
Replies
7
Views
365
Dilbert
D
N
Eric Hayes FOUND Tal 1773
Replies
9
Views
2K
mckhumboldt
M
A
Help!! 6AQ5 SE amp
Replies
2
Views
304
Tom Bavis
Tom Bavis
J
Lowther LL-26 copy build questions
Replies
12
Views
475
EC8010
EC8010
M
Is this the correct way to power the filament of a 12AU7 with 6.3V
Replies
7
Views
294
egellings
E
G
Triode/Pentode Loadline Calculator
Replies
496
Views
145K
kstlfido
kstlfido
longspeak
Output tube distortion comparison
Replies
32
Views
1K
longspeak
longspeak
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