• 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
L
Newbie questions about winding transformers
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13
Views
783
astouffer
astouffer
D
EL34 Push-Pull: big temperature differences between the 4 tubes - problematic?
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22
Views
2K
dvdr
D
Tuberabbit
Paraller SE E88CC/KT150 tube amp design
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6
Views
1K
Tuberabbit
Tuberabbit
M
6V6 amp in LTSpice
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19
Views
1K
6A3sUMMER
6
D
Help Identifying an Oddball Tube Amp Chassis
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4
Views
530
dtbradio
D
J
Need TV7 data setting for a Taylor 825 (40watt Power Tx tube) ca. 1947 ( Vf: 7.5V If: 2.0 Amperes)
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1
Views
324
Dieter Geissel
Dieter Geissel
H
Counterpoint NPM
Replies
10
Views
831
VivaVee
VivaVee
SONDEKNZ
Disparate Resistors in Parallel. POWER HANDLING Question?
Replies
10
Views
578
Tom Bavis
Tom Bavis
S
CK647 Tube Data
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5
Views
479
Tom Bavis
Tom Bavis
AudioFanMan
Examples of adjustable self bias 300b SE?
Replies
38
Views
3K
jcalvarez
jcalvarez
E
General rules for designing PCB for valve amplifiers
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81
Views
14K
Sadface
Sadface
J
PC88 layout tips?
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14
Views
994
baudouin0
B
M
Anyone seen one of these?
Replies
21
Views
1K
mdpaudio
M
Jaytor
SiC Mosfet for Source Follower in hybrid linestage
Replies
11
Views
2K
Jaytor
Jaytor
Q
Help me understand Tube maximum specs
Replies
11
Views
1K
Qmavam11
Q
L
300B advice
Replies
148
Views
13K
sumotan
S
Linear
Adjustable Feedback on a Switch
Replies
10
Views
617
6A3sUMMER
6
W
Kegger / Blueglow KT88 ideas for increasing power.
Replies
33
Views
4K
Depanatoru
D
N
DynaKitParts ST-35 power supply mods?
Replies
88
Views
6K
oemcar
oemcar
S
Qualiton APR204 6922 Preamp questions
Replies
10
Views
1K
subcode
S
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