• 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
A
Hello from Mexico
Replies
17
Views
700
jcalvarez
jcalvarez
T
803 tube
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12
Views
494
6A3sUMMER
6
N
Transformers and frequency response extremes?
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80
Views
5K
6A3sUMMER
6
T
Zirconium coated Molybdenum, vs Tantalum vs Pyrovac
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8
Views
414
toshiba_nz
T
S
Constant voltage PSU
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0
Views
323
Staticx
S
W
Suggest some tubes?
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17
Views
683
TheGimp
TheGimp
B
Audio Research Ref 75
Replies
12
Views
721
rayma
rayma
T
Can I use AC filaments for an 801A tube
Replies
22
Views
831
schiirrn
S
Z
TAMURA F -913 A
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0
Views
294
zenzen
Z
funkuncut
High pass filter for Quad II
Replies
9
Views
365
Osvaldo de Banfield
Osvaldo de Banfield
nickdinatale
Yet Another 300B Build Thread
Replies
36
Views
2K
popa marius
P
H
health check and failure modes of large vintage oil caps, help please.
Replies
2
Views
334
hbc
H
S
New Tim Mellows OTL project
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793
Views
167K
zoran2303
Z
K
Lafayette KT-550 bias information
Replies
6
Views
300
kissabout2002
K
pjanda1
Ultrapath Battery Powered WOT preamp question
Replies
2
Views
269
pjanda1
pjanda1
J
Help to understand and adapt Baby Ongaku PS to suit my power transformer...
Replies
42
Views
3K
Monk55
Monk55
H
Mono hifi to tube amp conversion
Replies
4
Views
327
6A3sUMMER
6
M
Slagle I/V transformers
Replies
15
Views
1K
6A3sUMMER
6
K
Looking for a DAC under 1500 new or used
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3
Views
350
jan.didden
jan.didden
E
Steep EQ curves in a valve tone control?
Replies
1
Views
231
Markw4
M
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