• 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
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Elevated heater limitations?
Replies
18
Views
738
robnec
R
jan.didden
Looking for high-voltage tubes
Replies
308
Views
18K
opcom
opcom
C
Hiss unaffected by volume - likely cause?
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15
Views
619
gerrittube
gerrittube
Z
Grounding and safe procedures for steel and wood case for amps
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4
Views
307
zintolo
Z
Sadface
Home Brewed Aikido Preamp
Replies
43
Views
8K
tubesguy
T
P
Luxman CL34 restoration
Replies
61
Views
14K
egellings
E
P
Good tubes for a headphone amp?
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12
Views
669
Robert H. Gribnau
R
R
Ideas for starter projects in vacuum tube technology
Replies
38
Views
991
Horneydude
Horneydude
O
Tube Amp Suggestions for HF/MF Range Biamping
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0
Views
128
oltos
O
M
PSUD 6C6 2A3 amp
Replies
22
Views
715
mrpunkk
M
F
Philips EL3536
Replies
20
Views
11K
Beorn87
B
E
Valve buffer for Purify module
Replies
24
Views
6K
Monstercore
M
N
Scored a bunch of QE08-200 (QE08-200H)
Replies
21
Views
986
smoking-amp
smoking-amp
djn
What is the best cheap tube pre-amp?
Replies
36
Views
2K
Ixnay
Ixnay
M
Preamp driving multiple loads
Replies
2
Views
161
mr ed
M
A
DIY CAT SL1 preamp
Replies
111
Views
76K
VintageAmp
VintageAmp
T
Needs help with EL84 valve
Replies
10
Views
413
The driver
T
Windcrest77
What construction flaw factor causes a Western Electric "B" grade 300B tube?
Replies
26
Views
1K
Windcrest77
Windcrest77
M
Intermittent Static on ARC REF 3 Preamp
Replies
69
Views
12K
baudouin0
B
Herr Grau
One channel of A88-T stays cold. Most propable problem?
Replies
13
Views
311
Herr Grau
Herr Grau
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