• 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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JJ capacitors
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18
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Vortex
Vortex
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dB into voltage gain????
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6
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Circlotron
Circlotron
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filament source connection to DHT
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7
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metebalci
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J
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Some questions!
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3
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Eli Duttman
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12AT7 poweramp specs?
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35
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Eli Duttman
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My First DIY - need big help!
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3
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adamamp
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need help with (now) not-working amp
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5
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adamamp
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P
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Reichert info
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2
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PCC88
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Vortex
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Criticise please!
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12
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Vortex
Vortex
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Negative Voltage using tube rectifier?
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5
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ohynot
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C
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really basic question
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6
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planet10
planet10
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811a Tube Cap Size
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2
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billr
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P
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SV811-3 SE : Lots of questions...
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11
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8K
fdegrove
fdegrove
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Old OP Transformer
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5
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PeteMcK
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suggest circuit with gain of 60
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17
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Fuling
Fuling
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Has anybody built 6BG6 or similar OTL amp?
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2
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SY
SY
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300BSE series
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3
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AKSA
AKSA
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How about this 12au7 pre?
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2
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richwalters
richwalters
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valve pre amp
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4
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soudoblack
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protos
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Critique for circuit of great value 805 SET?
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5
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analog_sa
analog_sa
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