• 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.

tube datasheets and amp sch

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I found a treasure....14 ps of el34..for free.....i'm so happy....so i decide to make good amp with al least 3-4 el34 per channel...please suggest me one good sch with no so expensive transformer or with detailed data, how to make trafo or where to buy. (chokes also)

also i found tubes ECH81, EABC80 and EF89, but I cannot find datasheets for them...could someone can help me ??

which tubes producer is better? siemens or phillips?
where can I buy base for el34?
 
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