• 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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Tube Identification Help Please
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11
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artaudio
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Please,a) cause of high pitched hum, b)DC wires twisted or not
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3
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2K
Sch3mat1c
Sch3mat1c
tenderland
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"lift off " or "Houston we have a problem"
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16
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tenderland
tenderland
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Diodes in series and hybrids
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10
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Miniwatt
Miniwatt
felixx
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Question about BAT VK 75
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0
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felixx
felixx
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12AX7 Compared!
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48
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lbchen
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Did a real nice find
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23
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Tekko
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New guy with DIY ground ?s--yes, even after searching:D
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4
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hermanv
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valveitude
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An Important Read
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5
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valveitude
valveitude
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6.3v Heater Regulator Schematic
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3
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Bas Horneman
Bas Horneman
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OPT winding orientation
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2
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EC8010
EC8010
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opamp driving tubes
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61
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16K
skyraider
S
Mr. Triatic
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6AS7 lowpower amp?
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1
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2K
SemperFi
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silurato
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PP OPT Core dimension
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4
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2K
PRR
PRR
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Tube amp volume fluctuation
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3
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4K
Optical
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1626's watt?
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5
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3K
PRR
PRR
C
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Shuagang 2A3C
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1
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2K
kmtang
kmtang
Shoog
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A sorry tale which will make you cry !!!
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27
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5K
dhaen
dhaen
tenderland
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5u4g vs 5u4gb
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3
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6K
Sch3mat1c
Sch3mat1c
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Confirmation of Primary Impedance?
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7
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planet10
planet10
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