• 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
P
5881 PP Restoration
Replies
26
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1K
grovergardner
G
nerdius-maximus
Question about choke & resistor values in bipolar power supplies
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8
Views
608
nerdius-maximus
nerdius-maximus
T
Ayumi pctube library
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2
Views
463
Ray Waters
R
N
Anyone have an idea where to buy Infinicap nowadays
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2
Views
261
nb63
N
U
help with change a old tube radio into headphone amp with LL2765
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7
Views
316
pcan
P
pjanda1
Carlson Super Probe
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2
Views
643
pjanda1
pjanda1
T
35T in Class A
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0
Views
331
toshiba_nz
T
N
Single heater power supply for 2 tubes
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14
Views
605
6A3sUMMER
6
A
how to bias Marshall 9200
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6
Views
646
Andrex88
A
T
With a good MOSFET follower, can you hear a change in the audio from class A to class A2?
Replies
22
Views
2K
radiotron
R
daveinnz
Tubes4HiFi are they still around?
Replies
10
Views
1K
lavane
lavane
Z
6U10, 6AC10, 6D10, 6AV11 Tubes
Replies
5
Views
537
Tom Bavis
Tom Bavis
S
Polystyrene capacitors
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9
Views
939
StingRay85
S
T
QB4 in triode
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3
Views
321
toshiba_nz
T
J
Oscillating/motorboating SE EL84 Amp
Replies
74
Views
3K
JMartell
J
WntrMute2
Capacitor Recommendations
Replies
59
Views
8K
Simon1972
S
T
Can I use an Enhancement Mode MOSFET for a source follower?
Replies
13
Views
800
euro21
E
DarekWawa
Do you recognize this (most likely Australian) vintage tube amplifier?
Replies
15
Views
964
jcalvarez
jcalvarez
SoaDMTGguy
What does tube V1 do in this schematic? (ARC D70 Power amp)
Replies
4
Views
354
stocktrader200
S
gary s
SMPS power supplies for tube amps.
Replies
4
Views
484
astouffer
astouffer
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