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RE: Russian substitutes for 6922 and 12AX7 tubes

Posted by Eli Duttman on January 7, 2017 at 08:32:34:
If you can source Soviet era 6H23Π-EB (6n23p-ev) favorably, you are good to go on 6922s. FWIW, the EH labeled 6922 is (in fact) 6H23Π-EB.

The 12AX7 is more difficult. If your bench skills are up to the requisite heater rewiring AND the tubes run on "6" V., the 6H2Π-EB (6n2p-ev) will float your boat.