• 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
Zero Cool
Making a Graymark 509 Safe
Replies
7
Views
774
wg_ski
W
B
LM334 cascode CCS
Replies
17
Views
2K
Hearinspace
H
doctor underhill
question on 5Y3 rectifier substitutes
Replies
8
Views
2K
jhstewart9
jhstewart9
V
Tube amplifiers with PMC EB1i speakers
Replies
111
Views
11K
VladimirK
V
doctor underhill
new to site. longtime hi-fi and tube guitar amp aficionado with questions on a vintage tube amp
Replies
19
Views
872
6A3sUMMER
6
L
Volume Control with Loudness and no Taps
Replies
12
Views
10K
Ray Waters
R
Toys4Boys
Input Selector w/ Remote Volume
Replies
0
Views
370
Toys4Boys
Toys4Boys
W
WF55 help needed
Replies
2
Views
279
Winterdance67
W
J
Balance Pot Wiring
Replies
19
Views
3K
kodabmx
kodabmx
drteming
CRCRCRCRC
Replies
12
Views
1K
v4lve lover
V
P
Question of 17KV6 plate dissipation
Replies
5
Views
531
v4lve lover
V
J
Guitar amp with 6SN7 and EL34
Replies
19
Views
1K
mandu
M
JojoD818
Heater Voltage Range, Hi or Low
Replies
44
Views
36K
Diabolical Artificer
Diabolical Artificer
A
Question about SE transformer issue
Replies
27
Views
1K
AndreK
A
A
Tube balanced pre amplifier
Replies
7
Views
663
atisa188
A
Fully Articulated
Converting an Aikido line stage to ACF (Aikido Cathode Follower)
Replies
6
Views
2K
Steve Morley
S
Leemhuis01
Philips 506 rectifier replacement
Replies
5
Views
883
v4lve lover
V
W
Service and owners manual for CounterPoint SA-1000?
Replies
4
Views
608
huggygood
huggygood
L
looking advice for 833 tube amp
Replies
5
Views
663
grataku
G
Windcrest77
A device that does many things a vacuum tube does
Replies
54
Views
4K
wg_ski
W
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