• 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
Nuuk
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Is this heater supply OK?
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39
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6K
sklimek
sklimek
H
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"Y" caps? current bleed?
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5
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2K
pmillett
pmillett
D
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'scoping tube amps
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3
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2K
pmillett
pmillett
R
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AC or grounded DC for heater?
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1
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1K
jarthel
J
dsavitsk
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Noval Relay
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1
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1K
Sherman
S
B
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5693 as a phono preamp?
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3
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2K
SY
SY
R
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Audio Amp Project
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15
Views
4K
rouslan
R
X
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why so CHEAP!?
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14
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3K
thomash85715
thomash85715
alexmoose
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Primary Impedance
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9
Views
2K
rdf
rdf
Stefanoo
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audio research schematics
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1
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3K
Giaime
Giaime
dsavitsk
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Neutrik XLR for Umbilical
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14
Views
4K
jackinnj
jackinnj
J
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should the filaments be already hot before the B+ is applied or
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15
Views
5K
Algar_emi
Algar_emi
K
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power amp kit recommendations
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11
Views
3K
Sherman
S
C
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My ARC D70 get trouble
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11
Views
4K
ckwong99
C
P
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Pls recommend a power amp to build?
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39
Views
7K
sorenj07
sorenj07
S
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PowerDrive Circuit for 805 (+ve grid bias)
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7
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3K
Miles Prower
Miles Prower
M
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Simple EL84
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25
Views
9K
gingertube
G
knubie
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Circuit calculations
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4
Views
2K
knubie
knubie
Algar_emi
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Need help for HV section Design
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10
Views
2K
sorenj07
sorenj07
Nixie
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Question about changing a hybrid
Replies
17
Views
3K
Nixie
Nixie
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