> >
> >> Hi guys,
> >> just a very stupid question for the most of you:
> >> what are the best BIAS's values for a single 8877 amp.
> >> running at 3900 VDC (no charge) for both SSB and CW/RTTY use ?
> >> Thanks in advance,
> >
> >
> >12 volts.
>
> > Phil
>
> EUR The best bias V for the 8877 is that which produces the recommended
> ZSAC of 90 - 180 mA.
> In other words, it is not very critical.
>
> ::Agreed, by one who's built several 8877 amps. It also varies with the
> gain (and age) of the tube itself. I have older pulls that are pretty
> long in the tooth and might require 10V bias to goose them up, and other
> newer tubes with seemingly more gain that require 15V or more to set the
> same operating conditions. -WB2WIK/6
>
>
>
>
> - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
> www.vcnet.com/measures.
> end
>
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