• 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
MyKPJ
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Need Help for Improving HEATHKIT AA 151
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0
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2K
MyKPJ
MyKPJ
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Troubleshooting help for a neophyte
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0
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865
firekat
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P
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tube dampers anyone
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1
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2K
TheGimp
TheGimp
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Output Audio Transformer Impedance
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63
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15K
BudP
BudP
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300B SET amp input sensitivity, Help.
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17
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4K
HP8903B
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djn
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IS there any OTL pre amps out there?
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36
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6K
djn
djn
Z
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Mengyue Mini EL34B stereo balance issues..
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30
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8K
kevinkr
kevinkr
J
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Eico HF-89a question
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6
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1K
johnmil
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J
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100TH Ep-Ip Curve
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0
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2K
ja2dhc
J
Klaatu
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Universal Power Transformer
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14
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4K
LinuksGuru
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tomchr
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300B Sweet Spot
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8
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5K
Miles Prower
Miles Prower
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SE 2 watt clean amp?
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27
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6K
brucetassin
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P
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Cheap and easy tube amp.
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26
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7K
roline
roline
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Does 81ma sound about right?
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9
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1K
pedroskova
pedroskova
J
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6V6 SE VS ECL85
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22
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10K
J_Hart_14
J
Z
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Frank's EC8010/6C45P-GM70 SE Interstage.
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2
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3K
Vinylsavor
Vinylsavor
mr2racer
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Hammond 1650n and Dynaco mark III circuit.
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16
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7K
Tubelab_com
Tubelab_com
R
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Project Planning (Steps/Order)
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2
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1K
DF96
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S
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plate stoppers or cathode stoppers?
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14
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4K
SemperFi
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If you were going to build a OTL?
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28
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5K
banat
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