• 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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PCL Vintage Amp VA1956 - transformer issue
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yamatele
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h00hbt
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Troubble shooting help please.....
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20
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3K
h00hbt
h00hbt
Klimon
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Rozenblit 6as7 otl questions
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15
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desperateaudio
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Power triode preamp a different way
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3
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mashaffer
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£49.95 Tube amp?!
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12
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rotaspec
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just one tube preamp or driver
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2
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HornTube
HornTube
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How much power do I need in the kitchen?
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6
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SchiZoID
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TF110-48/UL in the UK?
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13
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mogliaa
mogliaa
rsumperl
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809's in Class B P-P w/feedback
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42
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multi
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Help identifying transformer wires.
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6
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indianajo
indianajo
HornTube
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Grounding check for SE 300B amp
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2
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tomchr
tomchr
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Using one KT77 and one EL34 per side?
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2
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century tek
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Question Regarding a Partial Feedback 807 SE
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7
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Shoog
Shoog
rvrazvan
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220/110 step down in reverse ... and more
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12
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rvrazvan
rvrazvan
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tube pre and tube power amp
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7
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tiguan
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Help identifying a Telefunken(?) tube...
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17
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pyrotas
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Accuphase F-25 Japanese manual translation help!
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6
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HP8903B
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Amplifier output wattage test
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4
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jeffreybehr
jeffreybehr
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Help and your input on YAQIN MC10L EL34
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6
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mercy2600
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Twisted Heater Wires
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30
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trobbins
trobbins
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