• 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
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Filament of a 6AS7G
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7
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GF
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00940
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How to check output transformers ?
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2
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EC8010
EC8010
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triode=>pentode
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3
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Sch3mat1c
Sch3mat1c
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Any Tube DIYers in Bay Area
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4
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effindi
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W
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Tube parameter ?
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2
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cogsncogs
cogsncogs
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Voltage Doubler Problem
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10
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thoriated
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M
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market for used tubes?
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3
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The-Planet
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Alastair E
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Restoring tired tubes
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10
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3K
Alastair E
Alastair E
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Audio Innovations Series 300
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8
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9K
Stig
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Tube pre-amp
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19
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tubular_joe
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trancy
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at last, amp finnished
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14
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3K
Andypairo
Andypairo
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7591A Tubes for sale?
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0
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Glowin Plates
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R
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Diodes in Grid-Cathode Circuit
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11
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thoriated
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Gabevee
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Hammond Transformers
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0
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Gabevee
Gabevee
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SE OPT's & Biasing
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45
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cd6000
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Audio Research LS2
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2
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Lourens
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dud_wity
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el84 quad schematic..something is wrong...?
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15
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10K
dud_wity
dud_wity
A
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The Crackerbox Amp
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4
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audiobot
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B
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Quicksilver Bias Problem
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13
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3K
Charles Hansen
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Alastair E
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6n7gt
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7
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5K
jeff mai
jeff mai
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