• 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
B
Voltage double from heater secondary
Replies
18
Views
469
Tom Bavis
Tom Bavis
P
Fatman Itube MK1 amplifier
Replies
2
Views
304
vinylkid58
vinylkid58
E
801a tube preamp
Replies
54
Views
8K
swak
S
R
C85EL tube
Replies
1
Views
471
Nation81
N
A
6N6P/6H6∏ loaded with CCS
Replies
25
Views
1K
6A3sUMMER
6
A
What is this?
Replies
11
Views
504
Hearinspace
H
Sorento
Unknown Tube ID
Replies
9
Views
439
Suncalc
S
E
Tube amp Cayin 880
Replies
18
Views
1K
владимир 2901
В
V
Resistors in signal path (Gridstopper R)
Replies
24
Views
1K
wg_ski
W
M
Suggestions for DIY PP amp
Replies
49
Views
3K
6A3sUMMER
6
T
Standalone MM Phono Stage Project
Replies
24
Views
1K
TorroidDoughnut
T
H
Super Triode Single Ended Amp
Replies
31
Views
6K
FYC
F
S
Audio Research CA-50 input and Driver tube biasing
Replies
16
Views
932
Simonplatt
S
В
amplifier CAYIN 860
Replies
19
Views
481
владимир 2901
В
M
Mystery ECC82
Replies
16
Views
818
mdr30
M
H
Tube amplifier recommendations
Replies
21
Views
2K
Gruesome
Gruesome
E
Tips requested for tweaking this valve amp.
Replies
26
Views
3K
bigblue7
B
P
New Production EL34/6CA7/KT77 - Distortion measurements & curve tracer
Replies
8
Views
571
6A3sUMMER
6
Veke76
SET tube amp with 5Z3P 6N9P EL34B
Replies
18
Views
1K
Veke76
Veke76
H
56 Tube Spice Model
Replies
19
Views
805
hacknet
H
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