• 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
zigzagflux
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Rod Coleman CCS/gyrator help
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14
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10K
dsavitsk
dsavitsk
S
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Transformer Efficiency
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2
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1K
sawreyrw
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3
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Capacitor in series - Resistor across ?
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4
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3K
Johan Potgieter
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U
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temp check
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2
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1K
ultrachrome
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I
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modifying kt88 pp ul amp
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25
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8K
Herr Grau
Herr Grau
M
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Some general tube questions from a Tube newbie !!
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11
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2K
mashaffer
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R
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Paralell 10M45's for 71A DHT filament?
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12
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4K
Michael Koster
Michael Koster
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K & K Audio Transformer phase splitter?
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0
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2K
wttaylor
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A
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Seeking advice on "Circlotron" cross-coupled feedback OTL design
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8
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6K
atmasphere
atmasphere
hien.t.nguyen
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Karaoke Tube Hi-end In The Future
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10
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3K
hien.t.nguyen
hien.t.nguyen
pauldune
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10M45s: strange behaviour @ 100mA
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61
Views
11K
Sheldon
S
SIDEWALKSISSY
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tube power enough?
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36
Views
5K
Ty_Bower
Ty_Bower
N
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Mismatched Power Tubes
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13
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5K
TheGimp
TheGimp
C
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failing tube
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1
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1K
tomchr
tomchr
S
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Tube preamp choise...
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2
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1K
Glowbug
Glowbug
G
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TubeRiaa - How to calculate the impendance?
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4
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1K
Gudmund
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B
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Tubetech smc2b multiband compressor
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1
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2K
maxcreigs
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B
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Rating for resistors in power supply?
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9
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6K
indianajo
indianajo
B
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Can a dual triode use a common cathode resistor?
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5
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2K
alexg
alexg
Mush
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GM70 Lower Voltage PP Question
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3
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8K
j.michael droke
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