• 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-amplifier-shaped-usb-speaker
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11
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trigger
taj
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Inherited these tubes. Anything interesting?
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3
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DigitalJunkie
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do I need to upgrade my heater supply to add another tube?
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6
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leadbelly
leadbelly
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filling in the low end, 6bq5 12ax7 circuitry
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12
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rotaspec
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bst
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Anyone have curves for a 2C52?
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1
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sulcorebutia
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V
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Rogers E40a Amplifier Schematic
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5
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SWF
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How to self taught about building tube amplifiers
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10
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alexg
alexg
taj
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Home James! But first, which transformer?
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23
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alexg
alexg
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space charge 12fx8 amp or preamp schematic?
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13
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Bob_345
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Aikido Phono Stage with Step-up Transformers
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11
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vinylkid58
vinylkid58
raypalmer
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Couple idiot questions....
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1
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Cal Weldon
Cal Weldon
O
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Looking for the triode mode of Z759
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0
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olaychang
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jmillerdoc
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Help finding parallel 45 SE schematic
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7
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jmillerdoc
jmillerdoc
andyjevans
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Phono stage with LT1028 MC input
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10
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Eli Duttman
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martyh
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What gives with this square wave?
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23
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HollowState
HollowState
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Using 6n6pi Push and Pull
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2
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papparazzi
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bst
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Dynaco MkIII preamp/linestage recommendations?
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indianajo
indianajo
lawbadman
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Tube Sparking
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17
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indianajo
indianajo
Troncones
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12AX7,6BQ5 PP Amp Search.
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kevinkr
kevinkr
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Yarland FV 34CIII
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jauidom
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