• 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
Is it safe At 85% idle Two 6L6 GC RCA ?
Replies
11
Views
366
dubadub
dubadub
K
A different use for tubes...
Replies
6
Views
515
kb2wyl
K
E
White Cathode Follower - Cathode bypass capacitor question
Replies
10
Views
516
evonimos
E
Zero Cool
Source for Tube Preamp Transformers???
Replies
29
Views
819
Merlinb
Merlinb
Windcrest77
Over the top dim bulb tester, improvements
Replies
57
Views
6K
Windcrest77
Windcrest77
P
Want to build a single input line level valve pre … suggestions please
Replies
18
Views
567
jean-paul
jean-paul
F
Need help to identify an amplifier
Replies
9
Views
683
22C
2
R
Cap values needed
Replies
9
Views
293
Radian
R
swingarm63
Can anyone identify these output transformers?
Replies
0
Views
188
swingarm63
swingarm63
S
Cheap Transformers!
Replies
21
Views
2K
indaco
I
N
Trying to see FFT of a typical tube gain stage
Replies
8
Views
520
nauta
N
Flyingpob
My actual tube setup
Replies
1
Views
225
Flyingpob
Flyingpob
merlin el mago
DHT Headphone amp for HifiMan Edition XS
Replies
234
Views
8K
merlin el mago
merlin el mago
Frank40
thoughts on powering heatfilaments
Replies
6
Views
452
jcalvarez
jcalvarez
T
6BQ5 push pull amp conversion to fixed bias
Replies
117
Views
3K
Tube Radio
T
H
300B AB2 Push-Pull power output stage design and calc， Peak Ia concerns
Replies
18
Views
709
waltube
waltube
M
Driver for 810 SE
Replies
76
Views
9K
claudiomas
claudiomas
L
Q: 6SN7 Cathode Follower Driver Idea for PP KT88/60W
Replies
36
Views
1K
benchbaron
benchbaron
claudiomas
SE 2A3 300B amp or what's ?
Replies
2
Views
402
claudiomas
claudiomas
L
Negative Feedback
Replies
366
Views
19K
MarcelvdG
M
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