[hpsdr] Munin 2 update

Clyde Washburn k2ue at rochester.rr.com
Sun Mar 9 17:35:48 PDT 2014


There is nothing magic about a constant bias point, in fact it probably wants to vary with temperature for best linearity.  At given
temp the optimum bias point is defined as the point where the small signal Gm is half the large signal value.  Thus when both
transistors are conducting at low level the Gm is twice that of one device, and when only one is conducting for a large signalthe Gm
is the same.  So it is not worth obsessing over constancy. 

 

__________________

Clyde Washburn, K2UE

k2ue at rochester.rr.com <mailto:k2ue at rochester.rr.com> 

82 Lasalle Pkwy

Victor, NY 14564-9610

585-317-7006

 

 

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