• 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
Wavebourn
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New Self-Powered ROHS compliant electronic device invented!
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14
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Wavebourn
Wavebourn
P
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Bogen AP30 and new member
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1
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3K
TheGimp
TheGimp
J
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Diagnosing hum???
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6
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1K
Arnulf
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Making my first hifi tube amp.
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11
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ChrisA
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What kind of tubes do i have?
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6
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fdegrove
fdegrove
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How to lower preamp output?
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10
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4K
Merlinb
Merlinb
revintage
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Variation on Rod´s bias servo
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0
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revintage
revintage
L
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Building a 45 SET
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19
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livingdeliberately
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6sn7 subminature??
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14
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3K
kevinkr
kevinkr
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Vetruvio Audio; new competition for the Chinese?
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5
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2K
Ubi Mauri
U
cbj591
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Tube Preamp / Headphone amp question...
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2
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cbj591
cbj591
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Free Tube Amplifier Schematic Diagrams
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5
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Wavebourn
Wavebourn
cbj591
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Phono Preamp
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1
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2K
zigzagflux
zigzagflux
L
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Signal hum ideas please.
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18
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gootee
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LT108 Oscillation sounds like tube rush/white noise
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5
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Hearinspace
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One channel louder than other
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4
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loudel
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cbj591
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At Last....First Build Complete...6V6/6SL7
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9
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cbj591
cbj591
L
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Home Grown tube amps
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3
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4K
lotehk
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Adjust cathode bias pot - both channels move together. Why?
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17
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Hearinspace
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Help wiring up anLED Bar
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30
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Soonerorlater
Soonerorlater
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