• 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
J
Reisong MT-34 MKII
Replies
0
Views
250
jaguar1990
J
1
Push-Pull transformer question
Replies
63
Views
5K
TonyTecson
TonyTecson
P
Copland CTA405A - faulty resistor
Replies
0
Views
228
palmierig
P
anatech
Tube McCurdy help - phono pre AP 120
Replies
0
Views
246
anatech
anatech
B
Repair Klimo Kent power amp by my self
Replies
1
Views
1K
CSandrelli
C
J
  • Locked
Balanced Audio Technology VK-D5SE
Replies
110
Views
4K
jimmyp11
J
M
My SE amps sound harsh without NFB
Replies
40
Views
3K
6A3sUMMER
6
A
Are these OT Winding Ratios correct?
Replies
32
Views
2K
Rikaro
R
N
preamp 6J1 used separate, transformer ct hot
Replies
7
Views
557
nefi destiandri
N
F
Something interesting Class A hybrid
Replies
10
Views
1K
Tubelab_com
Tubelab_com
E
DC coupled 4P1L + ECC81
Replies
6
Views
770
hooman
hooman
hooman
EL34-pushpull-cascode input
Replies
24
Views
2K
lcsaszar
lcsaszar
K
Skunkie Designs 300B
Replies
162
Views
20K
merlin el mago
merlin el mago
S
SE OPT Specs
Replies
7
Views
818
ErikdeBest
E
jcalvarez
CCS biasing: Avoiding current in a potentiometer wiper
Replies
42
Views
3K
Mark Tillotson
M
oemcar
VTVM or FETVM?
Replies
176
Views
7K
anatech
anatech
S
Modern capacitor over voltage, how high and for how long?
Replies
42
Views
4K
Potentiallyincorrect
Potentiallyincorrect
M
microwave MOT as SE output transformer
Replies
9
Views
854
jcalvarez
jcalvarez
M
Direct Coupled Tube Failures
Replies
31
Views
1K
markw51
M
T
AliExpress 2A3B, 2A3C, 2A3D experience/reviews
Replies
14
Views
2K
45
4
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