• 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
S
Aikido LV channel imbalance
Replies
7
Views
313
Steve Morley
S
6
Self Inverting Push Pull 6V6S Mono-Block Amplifier with tip socket test points
Replies
19
Views
886
6A3sUMMER
6
G
WAD KEL84 or ANKits EL84 ???
Replies
7
Views
895
6A3sUMMER
6
B
Sweet Peach KT88 mods (quick Qs)
Replies
2
Views
204
6A3sUMMER
6
M
Bad sounding Grant G100 AMS KT88 Amp
Replies
58
Views
2K
Masa1897
M
Algar_emi
Tube, Explain this circuit topology
Replies
5
Views
280
Algar_emi
Algar_emi
Windcrest77
A 'unique" idea for prototyping
Replies
3
Views
329
Fuling
Fuling
T
Best 6BM8 Tubes
Replies
3
Views
563
wrenchone
wrenchone
sajadho1988
How insertion loss of an Output Transformer is measured?
Replies
8
Views
476
6A3sUMMER
6
K
845 SET amp recommendations
Replies
84
Views
27K
jwags81818
J
zoundhead
My first tube preamp
Replies
20
Views
1K
rongon
rongon
D
Octal dual pentodes?
Replies
40
Views
4K
seanfir
S
M
Step down transformer in reverse - safety and performance
Replies
48
Views
3K
mr_zener
M
A
Exploding 1958 Mullard F91
Replies
18
Views
803
J_Perkins
J
U
ARC Ref5 PSU resistors question
Replies
12
Views
523
UptownFunk
U
R
multi-channel tube preamp
Replies
1
Views
187
jcalvarez
jcalvarez
Windcrest77
Adopting 2A3-40 vs 2A3
Replies
3
Views
329
Tubelab_com
Tubelab_com
M
eBay / Ali Express volume control
Replies
3
Views
408
Diabolical Artificer
Diabolical Artificer
T
Röhre Telefunken RE034
Replies
4
Views
372
Fuling
Fuling
Bigun
A nice little valve amplifier
Replies
258
Views
72K
jhstewart9
jhstewart9
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