• 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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bypassing preamp board in integrated amp
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Eli Duttman
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Mallory FP 2x30/500 for Scott LX-72 - NOOB
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Vespasian
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ferrite beads v. grid resistor
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8
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richwalters
richwalters
zobsky
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How much trickle current can fixed bias cathode batteries stand?
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TUBESMAN
TUBESMAN
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meixing 805 tube amp problems
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11
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bear
bear
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caddocks mk132: has anyone used them for tube projects?
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mach1
mach1
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Has anyone simulated an "Aikido" amplifier?
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bloozestringer
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Transformer DCR's
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2
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bloozestringer
bloozestringer
zigzagflux
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ST-70 OPT, A-470 question
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11
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bear
bear
Richard Ellis
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Trans. alignments
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kevinkr
kevinkr
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What went wrong with my amp? Bass driver strange movement.
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10
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richwalters
richwalters
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aikido problem
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13
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Geek
Geek
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best amp for rock n roll
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19
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arnoldc
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Help - tube radio
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49
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Wavebourn
Wavebourn
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quick question about tube relays
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10
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coresta
coresta
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Manufacture date of 6SN7s
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5
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henryp
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Plate chokes & Power chokes
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3
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JC951t
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TUBESMAN
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driver stages
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20
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rickl
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sorenj07
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Yeo's Simple EL84 with a twist
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19
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sorenj07
sorenj07
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Is this OK for the Etude Preamp?
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16
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Burnedfingers
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