• 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
N
Could anyone help me confirm the cause of failure in this circuit
Replies
42
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1K
nb63
N
SoaDMTGguy
Utterly baffled by tube heater power problem
Replies
65
Views
2K
rayma
rayma
WntrMute2
Phono-Stage Hiss
Replies
134
Views
6K
WntrMute2
WntrMute2
nerdius-maximus
Scratching my Brain trying to remember a tube type...
Replies
42
Views
2K
smoking-amp
smoking-amp
C
B+ dropped 15%
Replies
29
Views
1K
6A3sUMMER
6
Tony44
Tube preamp with 6A2 shematic?
Replies
2
Views
1K
feilil
F
C
Stable current-production mosFETs for Pimm CCS
Replies
5
Views
831
Charles G
C
B
6C33CB PP amp with ultra linear
Replies
45
Views
3K
baudouin0
B
C
Looking for transformer recommendations, Aikido octal
Replies
56
Views
2K
nerdorama
nerdorama
D
Problems with Chinese PP kit
Replies
174
Views
19K
aussiehere
A
inkasound
Help with Aikido Line Stage Decision
Replies
49
Views
3K
batteryman
B
J
Anyone have docs on this Epperson / Waters preamp line stage?
Replies
4
Views
331
jono1
J
Z
Simple high voltage regulator suggestions
Replies
65
Views
6K
jackinnj
jackinnj
N
2A3 monoblock chassis size question
Replies
20
Views
1K
NormB
N
N
SET amp power transformer hotter with KEF speakers
Replies
33
Views
1K
newbie802
N
stenak
Hammond 1650E output transformers and colours on the wires
Replies
7
Views
449
pcjoe123
pcjoe123
J
6AR6 Push Pull Triode Stereo Amplifier
Replies
5
Views
797
jonusgrumby
J
Maximus89
Help with vintage tube amp parts replacements
Replies
7
Views
542
6A3sUMMER
6
E
6AS6/6082 SE OTL amp with an inductor
Replies
20
Views
2K
Fuling
Fuling
stephe
Willsenton R8 Owners: Important bias board safety mod
Replies
2
Views
2K
Ayaka
Ayaka
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