• 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
merlin el mago
Zobel for ringing OPT 8010Hz
Replies
6
Views
336
merlin el mago
merlin el mago
michaeljessen
RLC serial resonance circuit
Replies
19
Views
944
michaeljessen
michaeljessen
nerdius-maximus
History Question about Pass Tubes or Regulators!
Replies
3
Views
348
rayma
rayma
D
Tubes4HiFi SP20E Buzz
Replies
5
Views
331
anatech
anatech
L
Beard Audio CA-35 Pre Amp Schematic needed.
Replies
2
Views
337
leoaudio13
L
T
Build Phono Preamp
Replies
143
Views
22K
TDHien59
T
SomeJoe
Metallized Polypropylene or Polyester film Motor run caps for PS filtering
Replies
41
Views
2K
SomeJoe
SomeJoe
E
Push-Pull and SET
Replies
20
Views
2K
planet10
planet10
emartine
Adding loudness compensation to tube preamp
Replies
6
Views
749
emartine
emartine
M
Running 12AX7 filament using a 24V DC power supply
Replies
11
Views
553
OldHector
OldHector
C
6Π3C Application
Replies
48
Views
3K
zdenoeddie
Z
tiefbassuebertr
Good Replacement for MEPCO's Electrolytic Caps 1000uF/300V, (35mm Ø), used in VTL Amps e. g. Compact 100 and Stereo 50)
Replies
3
Views
458
mdpaudio
M
A
EL34 UL/Triode Switch
Replies
12
Views
800
Ajay L
A
Fuling
Hybrid A2 driver ideas
Replies
0
Views
276
Fuling
Fuling
K
Question about filament voltage on push pull
Replies
9
Views
393
jan.didden
jan.didden
W
A couple questions on Solid State PT to be used on Tube amp
Replies
6
Views
409
wg_ski
W
M
Design of C-core nanocrystalline GM-70 output transformer
Replies
197
Views
16K
Zoran
Z
C
Hum From Volume Pot
Replies
17
Views
629
6A3sUMMER
6
kevinahcc20
VTL Compact100 Monoblock Blows Fuse
Replies
27
Views
7K
mirach
M
andyjevans
Shunt type volume control for tube preamp
Replies
42
Views
5K
quickie
Q
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