• 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
noisyneighbour
HELP 2nd amp build: Adapting a schematic to the components i already have
Replies
30
Views
1K
Tom Bavis
Tom Bavis
I
EL34 push-pull
Replies
59
Views
3K
nauta
N
Haze Head
First build, EL84 quality control?
Replies
39
Views
1K
Haze Head
Haze Head
dubadub
I've been Grounding wrong this whole time. How do you connect your Signal Returns to the Chassis?
Replies
16
Views
988
schiirrn
S
grahamfocal
TKD pot upgrade
Replies
13
Views
767
K.A.B
K.A.B
Kay Pirinha
Unusual designs in the Audio Research SP10 peramplifier
Replies
4
Views
406
grataku
G
hooman
EI E88CC...
Replies
89
Views
6K
gupsta
G
Fast N’ Bulbous
Resistor swap
Replies
4
Views
193
Fast N’ Bulbous
Fast N’ Bulbous
R
12AU7 with AC 220V?
Replies
19
Views
891
Rikaro
R
adason
6E2
Replies
10
Views
2K
BalleClorin!
B
C
SE OPT Primary at 1K6 what purpose of wiring "ZNF"
Replies
14
Views
416
zintolo
Z
D
ARC Ref 6 Preamp schematic
Replies
5
Views
578
ne5532
ne5532
emk2
814 PP
Replies
9
Views
421
Fuling
Fuling
Miniwatt
Motor run caps - current production
Replies
25
Views
2K
cracked case
cracked case
G
The Marlboro Reds- twin mirrored Dynaco Mk IIIs
Replies
14
Views
708
Gmichael52
G
revintage
DHT for the poor that can´t afford an OPT
Replies
26
Views
1K
revintage
revintage
S
Audio Research LS5 MkIII
Replies
19
Views
745
nauta
N
S
Is a 33GY7A actually a 6DQ6B type with a diode?
Replies
7
Views
271
vinylkid58
vinylkid58
dubadub
OTL Headphone Amp usage - Do's and Don'ts - Headwize 6N1P Headamp
Replies
0
Views
220
dubadub
dubadub
grahamfocal
Valvo EL80CC to swap for 12AX or AU7
Replies
6
Views
313
Flikoman
F
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