• 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
kingfisher
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BP Ultrapath
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4
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1K
TheGimp
TheGimp
Mosquito
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A Triad xfmr for a voltage doubler PSU
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7
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2K
Mosquito
Mosquito
W
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LL1682PP Lundahl
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5
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3K
Will
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R
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Tube line stage output impedance
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28
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7K
Allen Wright
A
Zen Mod
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Tube shops/sellers in Kiev , Ukraine ?
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5
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2K
Ian444
I
K
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Stupid question: EL34 tubes.
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22
Views
4K
danFrank
D
C
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quad output tube help
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12
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4K
ChipTube
C
nicoch58
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what's up !? new choke=subsonic pumping
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6
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1K
nicoch58
nicoch58
chrish
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Help identify variac
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15
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3K
chrish
chrish
V
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"Stacking" power transformer secondaries?
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14
Views
5K
Wavebourn
Wavebourn
807tubenut
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Wanted! single-ended 807 schematic
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9
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7K
AmadeusMozart
A
rongon
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Anything horribly wrong with this (LTP w/ LM317 as CCS)
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33
Views
13K
Salas
Salas
tikiroo
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Is this output transformer faulty?
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10
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4K
Arnulf
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F
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Help finding a tube tester for Stereo tube amps.
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8
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3K
ChrisA
C
gabrielbecheanu
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G-807=807 SE or PP?
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8
Views
12K
Miles Prower
Miles Prower
brsanko
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what 2A3 desgin recommented for home theater
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43
Views
5K
Wavebourn
Wavebourn
W
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How badly matched are your IXYS10M45S ?
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51
Views
6K
DualTriode
D
rsumperl
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Triode in Class B or Beam Pentode in Class AB2
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24
Views
5K
Tubelab_com
Tubelab_com
U
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Scott 350B Tuner; Bridge Rectifier
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3
Views
2K
Tubelab_com
Tubelab_com
freddi
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what's a good layout for a quad EL84 amp on this box?
Replies
3
Views
4K
freddi
freddi
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