• 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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What to do with ECC88's?
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15
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Geek
Geek
Shoog
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Can anyone sujest a good operating point for the PL84
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3
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2K
Yvesm
Yvesm
D
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fisher x100a
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16
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6K
anatech
anatech
A
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FFT analysis-Truth or Consequence
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30
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5K
audiobot
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S
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Help translating russian tube datasheet
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7
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Simpleton
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M
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ecc88 tube pover supply-rect.
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8
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marijan
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E
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Negative Feedback Ground
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2
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eduardio
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dshortt9
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Audio Note Trans 205 specs?
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0
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2K
dshortt9
dshortt9
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Help wanted with valve data
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5
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Hojvaelde
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Alastair E
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Pcl84 / 15dq8
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12
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13K
ilimzn
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karma
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single ended HiFi Regal stereo tube amplifier
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20
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6K
vmike
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trancy
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KT instead EL
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2
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2K
Sherman
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tenderland
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int. low signal
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3
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1K
Sherman
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H
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Can I use Philips TB2.5 /400 in a SE ampl.
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4
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4K
karma
karma
K
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a single double triode and two chanel?
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2
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1K
ray_moth
ray_moth
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how to determine P1 from P2 of a Push-pull transformer?
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10
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3K
anatech
anatech
R
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12JT6 in triode mode curves needed
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2
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Radames
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Yvesm
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EL802 driving a 845 ?
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4
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6K
Tekko
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Where did these EL84 numbers come from?
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2
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Sherman
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I
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Is there a 12CM7?
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11
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ilimzn
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