• 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 Telefunken parts?
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8
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Dredfred
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Help needed for 6H30 output schematic for DAC
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1
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Trebla
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OT as buffer?
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5
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bill mountain
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Duo
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Fisher 80c - knob missing...
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6
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Bob Richards
Bob Richards
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heater voltage
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8
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payitforwardeddie
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SSassen
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ECC82 based preamp
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81
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69K
radio
radio
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Masco MA-35 rebuild
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0
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AF Froger
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A3rd.Zero
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Requesting input on preamp schematic
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21
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A3rd.Zero
A3rd.Zero
croccodillo
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A small help with russian low voltage tube
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10
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Wavebourn
Wavebourn
Hi_Q
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Yaqin MC10-L Need help collating data
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4
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Hi_Q
Hi_Q
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tube rolling el34 need advice
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6
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tinitus
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Single ended EL84 Schematic
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2
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quikie22
Q
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What types of SET rock the hardest?
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23
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Tubelab_com
Tubelab_com
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missing circuit components- why?
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1
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mortie
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A Direct-Coupled Amplifier with Cathode Follower 6V6
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6
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livingdeliberately
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60 watt tubeamp with Low B+
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11
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boywonder
boywonder
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What to do with a 6N14P/ECC84
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0
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Cookj
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john65b
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Magnepan High Frequency Tube Amp
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6
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2K
john65b
john65b
zigzagflux
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Ping SY: His Master's Noise
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21
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SY
SY
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Jan Tube question
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3
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Hamersveld
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