The Ten Tec 444 have two separate bias circuits,
one for each of the two power modules (pairs of MRF428's).
If separate heatsinks are used, then separate bias (including
thermal compensating sensor/device) is mandatory and
always preferable also.
73's,
Traian
Philip de Cadenet wrote:
> I have a Metron amp which has but a single pre-set to adjust the bias
> for all 8 devices. Is this shared in such amps as the Henry's, SGC and
> Ten Tec Hercules or do they have a single pre-set for each pair of
> transistors?
>
> If you use a properly matched set of output devices am I right in
> thinking there would be no advantage in having separate pots per output
> pair?
>
> Thanks.
> --
> Philip de Cadenet G4ZOW
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