> >I've seen six cases of low cathode emission in the
> >past 18 years in 8877's. In five of those cases,
> >the filament systems were modified to reduce voltage
> > and they missed by a few percent.
That is why the wattmeter should be looked at when adjusting
filament voltage...to make sure the emission is not being reduced.
A lot of ham shacks I've seen have modest a.c. wiring with long
runs back to the service entrance. The voltage sag must be taken
into account....another reason to adjust with full suds cranked up.
(((73)))
Phil, K5PC
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