• 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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Lafayette LA215 voltage problem !
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DF96
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kmtang
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Audio Note M7 - 7F7 CCS
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6
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PICO11041968
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7591 cathode resistor unstable
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4
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Capt Grogg
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Shocked!!!
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30
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Rullknufs
Rullknufs
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David
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1
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mastodon
mastodon
Klimon
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TETRODE amplifiers
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35
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DF96
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Need help to calculate R in a CCS!
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5
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Bandersnatch
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6N23P, transistor PP hybrid amp project.
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16
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Arnulf
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Transformer choice for DC heater supply?
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14
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dfro
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tomchr
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Why the wimpy 300B operating points?
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9
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DrewP
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Rundmaus
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Pentode curves - how to find operating point withoud going crazy?
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6
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artosalo
artosalo
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6922 into 6H30 socket ?
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1
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Joshua_G
Joshua_G
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Single end amp power supply upgrade
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0
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speakerfritz
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Decoupling cap hum
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7
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SY
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R
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Plate chokes
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3
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Gluca
Gluca
Troncones
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How is an amp's output measured?
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21
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trobbins
trobbins
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12EN6 in triode mode...fine ???
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0
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aldovan
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6BN11 in triode mode...any experience ?
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3
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aldovan
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used 12at7
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16
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trobbins
trobbins
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Wiring Buck Transformer with GE transformer Help!
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20
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HP8903B
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