• 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
S
Quicksilver Mono Amp noise on startup
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62
Views
1K
streetcore
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merlin el mago
Building Euro21 801A tube preamp
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111
Views
6K
merlin el mago
merlin el mago
H
Another Chinese PP amp
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9
Views
557
hamsalad
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Rme9632
Bypass B+ caps voltage tolerance
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14
Views
643
czgagi
C
SY
Survey: Aikido distortion
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258
Views
55K
jgf
J
G
Mounting Guide for Power transformers, Output transformers and Chokes
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13
Views
464
Suncalc
S
N
Frank's 6SN7 preamp output capacitor question
Replies
30
Views
934
Merlinb
Merlinb
C
DC 2A3 SET Low Freq Rolloff
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31
Views
1K
je245
je245
Cobra2
Tube Buffer 6J1 / 5654 (6AK5)
Replies
107
Views
82K
metanastis
metanastis
S
New pre-amp: B405 with BH rectifier
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62
Views
3K
suwaned
suwaned
R
Pentode output modes
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14
Views
539
jan.didden
jan.didden
V
Optimation PA-250AC Lab-Grade Audio Amplifier
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19
Views
6K
HexFET
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gerrittube
Tweak amplifier performance for a certain power level
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4
Views
155
ron68
ron68
MagicBus
Another KT88 PP
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5
Views
383
MagicBus
MagicBus
N
Low voltage tube line preamp
Replies
49
Views
42K
NovaPA
N
K
Finally building my MkIIIs, a pictorial thread
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63
Views
4K
kb2wyl
K
Maximus89
Can I use miniature tube as driver with adapter in my amp?
Replies
35
Views
1K
Maximus89
Maximus89
Y
Xiang Sheng 278a
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11
Views
347
Robert H. Gribnau
R
T
Why has single ended output become popular
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396
Views
42K
Zoran
Z
T
Tube 2E22 in triode mode
Replies
28
Views
17K
sunil
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