• 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
jmillerdoc
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DC modules fot DHT amps....too expensive to buy pre-built, why not DIY them?
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27
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5K
jmillerdoc
jmillerdoc
pauldune
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ecc88 arcing at shutdown problem...
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33
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5K
Gordy
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B
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Donor stereo 845 amp- now what!?
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19
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3K
blackeye*_0
B
CoolJazz
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Bottlehead Foreplay III improvements, suggestions, alternatives?
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4
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3K
JPeitzman
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B
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Will and Aikido Driver Stage work?
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4
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3K
Bas Horneman
Bas Horneman
aardvarkash10
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807 pp build project - whose in?
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13
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4K
aardvarkash10
aardvarkash10
TheGimp
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Transformers to try.
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17
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5K
Donaldmbs
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C
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Load Resistance (Ra) question applied to OTs
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4
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2K
Captn Dave
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K
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Has anyone built this amp?
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46
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9K
jaencer
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M
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Look for high-voltage regulator projects
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223
Views
63K
athos56
athos56
nullspace
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1st Pass at 1st Phono Preamp; Comments?
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16
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13K
nullspace
nullspace
P
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formula help
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6
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2K
Poindexter
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H
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Valves' world
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9
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4K
Miles Prower
Miles Prower
P
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Tube diode for cathode bias?
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12
Views
6K
smoking-amp
smoking-amp
G
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Hybrid Srpp
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20
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13K
Bigun
Bigun
C
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Please comment on this EL84 PP design
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13
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6K
Captn Dave
C
Richard Ellis
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Trying to get a response from TX maker.pass it on.
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2
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1K
Richard Ellis
Richard Ellis
P
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Need help choosing a filament supply
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0
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1K
phrarod
P
greenvalve
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Filament current bias
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11
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5K
dsavitsk
dsavitsk
S
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Decware output stage
Replies
1
Views
891
revintage
revintage
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