[Milsurplus] GRC-9 bias cell?

[Richard Brunner]

Another thought:  In the GRC-109 receiver bias for the AF amplifier is
derived from the BFO, which runs all the time.  For AM reception it is
merely tuned out of range.

Richard, AA1P


On Sat, 2009-08-29 at 15:59 -0700, Hue Miller wrote:
> In reply to the one suggestion re the bias system
> in the BC-1306 and TRC-2, that receiver is single
> band. I notice in the GRC-9 circuit that the grid
> leak bias resistor actually changes with the band
> change. This I suppose is largely why the design
> didn't use that source of negative bias. -Hue Miller
> ______________________________________________________________