• 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
R
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Running tubes at lower voltages
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23
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8K
beamnet
beamnet
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5687 dc 5687 tube amp need help
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8
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5K
Eli Duttman
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Joseph0
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cathode capacitance on anode follower
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27
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4K
Johan Potgieter
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G
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Tube Companies
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1
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Netlist
Netlist
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how to mount rca jacks and volume control in wood enclosure?
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13
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uvodee
uvodee
R
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Carver Phono
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15
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reinhard
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P
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Input cap needed
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8
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yagas
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R
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query on the PSU of a preamp
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2
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marconi
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S
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Capacitor Values Why so high? & What can I do?
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3
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mcs
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B
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Bias pot question
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1
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Tom Bavis
Tom Bavis
Gluca
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let me fix this bias
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8
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Onra
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Tubes4e4
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A small no-fuss pentode/pentode SE amp
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13
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DigitalJunkie
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L
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valve preamp criticisms?
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19
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Johan Potgieter
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P
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Tube-cad, is it worth the $40?
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13
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11K
poobah
poobah
pixpop
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What I have: 4 Tubes. What I need...
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3
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pixpop
pixpop
jane
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Interstage transformer for PI.
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4
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3K
jane
jane
R
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mono center channel out to stereo
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5
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2K
Giaime
Giaime
dsavitsk
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Bleeder Resistor Placement
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2
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2K
Tweeker
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8
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717a plate volts
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6
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3K
Tweeker
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pmillett
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New books posted
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10
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4K
Brian Beck
Brian Beck
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