• 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.

lost a tube

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ultrachrome

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Joined 2002
One tube of a matched quartet of EH EL34s just rolled off the table. :(

Do I really need a matched quartet for my ST70? Can I just get a matched pair for one channel?

The tubes have a couple hundred hours on them at most.

Am also looking at a quartet of EH 6CA7's and to le$$er extent Angela's NOS Siemens.
 
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