• 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
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Qualiton APR204 6922 Preamp questions
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10
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1K
subcode
S
P
A guide on building chinese kit from Douk Audio 12AX7 12AU7 Stereo Vacuum Tube Preamp
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16
Views
9K
yongjuat
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kuly
6FW5-6AV5 PP tube amplifier
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4
Views
1K
Miles Prower
Miles Prower
T
Lowering Gain on EAR 834p
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43
Views
4K
TheSoundMann
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Junm
Victoreen Corotron M42c-12, any datasheet?
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10
Views
1K
Junm
Junm
WM-F10
GE Tube Radio Restoration - Leaking Component
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15
Views
976
WM-F10
WM-F10
kuly
Lafayette KT-250-A
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7
Views
821
dobrien25
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F
Filament voltage for UX-201a tubes
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8
Views
1K
sser2
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Barry NJ
I'm looking to reduce gain in this preamp
Replies
109
Views
5K
jean-paul
jean-paul
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Recommend DIY build learning resources?
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26
Views
1K
Subuckethead
Subuckethead
NickKUK
Pentode push-pull screen question - voltage in relation to plate
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17
Views
2K
6A3sUMMER
6
S
Tube identification
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7
Views
792
OldHector
OldHector
Jaytor
LTP Tube recommendations
Replies
30
Views
2K
Bandersnatch
B
K
Luxkit (Luxman) A3700II assembly manual?
Replies
4
Views
3K
walangalam
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stephe
Input or Output Pre-amp Volume Control
Replies
140
Views
16K
stephe
stephe
M
6AK5, 5654 - EL84 Amp
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14
Views
2K
Chris Hornbeck
Chris Hornbeck
korneluk
Ch. 7 of Designing Power Supplies for Valve Amplifiers
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1
Views
787
rayma
rayma
drteming
Compactron VR tubes
Replies
35
Views
2K
6A3sUMMER
6
DonaldStott
PYE Stereo Black Box G63
Replies
139
Views
6K
Galu
Galu
I
History of the ECC88 tube family
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16
Views
2K
triode_al
triode_al
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