Re: Jiskra Sonoretta midget valve radio
I have now identified that the correct valves are EK90, EF93, EL95, and EZ90 or their
equivalents, and in fact the radio is up and running reasonably well, although I'm fairly certain that the F.C. valve in it is a 12BE6(HK90)though the lettering has almost worn
away, so I may get a 6BE6/EK90 to see if the performance improves
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