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In Reply to: RE: No Russian or Chinese equiv of the 7189A posted by geezerrocket on December 22, 2015 at 08:50:41:
Per the link you supplied:
"the 7189 is designed for circuits operating in the 400 volt range. The EL84/6BQ5 is designed for the 300 volt range."
My tube manuals confirm this. But I see LOTS of currently produced guitar amps that use EL84/6BQ5 and run them at 400 volts. In my experience, they seldom arc over internally, but they become microphonic prematurely.
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Follow Ups
- RE: No Russian or Chinese equiv of the 7189A - Alpha Al 15:14:12 12/22/15 (0)