Are those E88C usable in gear that uses (normally) E88CC or ECC88? What are the differences between E88C and E88CC/ECC88?
I'd buy those E88C if I can use them in my X-Cans.
There's a statement in the auction that those E88C are for UHF applications and that they can be used (sometimes) in NF applications.
EDIT: I just learned by searching with Google that E88C is only one triode and that E88CC is a double triode. I'm almost sure that this prevents the E88C from being used as replacement for E88CC/ECC88, but please correct me if I'm wrong.