• 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
Fuling
MosFET for high voltage, high ripple PSU
Replies
19
Views
1K
Fuling
Fuling
T
Favourite American pentode?
Replies
46
Views
3K
Tubelab_com
Tubelab_com
T
5AR4 Rectifier Supply Voltage
Replies
1
Views
304
JonSnell Electronic
JonSnell Electronic
T
Favourite Internals
Replies
2
Views
330
toshiba_nz
T
M
Equation for Steve Bench's crossover
Replies
2
Views
298
mashaffer
M
Bas Horneman
Another RH-84 build thread this time with a JR-Audio OT (tertiary winding) and Salas '6v6' nay 6P43P-E
Replies
7
Views
948
Bas Horneman
Bas Horneman
C
Not sure the circuit can drive KT88
Replies
9
Views
650
ckwong99
C
A
Newby Push Pull Question
Replies
10
Views
657
6A3sUMMER
6
T
EL34 PP Layout Proposal
Replies
4
Views
780
jcalvarez
jcalvarez
Leemhuis01
Vacuum tube replacement E424 (solid state)
Replies
3
Views
655
KeesB
K
jcalvarez
6P41S maximum anode dissipation
Replies
27
Views
5K
Svytoslav
S
V
4P1L-4:1 lineoutput transformer driving SFR E130 SE
Replies
0
Views
403
vega65
V
T
Source-o-dyne Phase Inverter
Replies
5
Views
500
stocktrader200
S
6
Copland CTA 501 - need help to identify capacitors
Replies
17
Views
1K
forza paris
F
F
2P29L Preamp
Replies
176
Views
32K
woodturner-fran
W
Tha(t)oneGuy
Dark striped Glass on some tubes
Replies
21
Views
1K
Tubelab_com
Tubelab_com
DrDyna
Troubleshooting VTL mb-300 - Help! I'm at a loss.
Replies
2
Views
399
DrDyna
DrDyna
Mosquito
DC Cathodyne not balanced
Replies
24
Views
1K
ejp
E
S
Linear Audio High-voltage Delay for GM70 build
Replies
6
Views
562
sunil
S
Lingwendil
Advice for EL84 SE PCB
Replies
11
Views
2K
ratbagp
R
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