I have some Chinese GI-7Bs(Cninese renamed FM-7F,I have call the factory, they
told me its quality is same as Russian's), I want to do a HENRY TEMPO 2001 tube
convesation,origional tubes is a pair 8874.
Although I have bought a pair 8874, but I think it is too expensive to
me($500/pair).I'm thinking to replace
a pair 8874 to a pair GI-7B , I have never do it.But I think it should not be
a problem to me,I only want to know
its life in 700-800W HF/VHF/UHF out put level.Could someone can tell me its
life? So I can cauculate how much GI7B I should be reserve.
Thanks in advance!
73! Hsu
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