> Also, I don't think of Darlingtons ever really going into saturation 
> (at
> least the second transistor).

They don't, by definition of what is technically meant by saturation.

> The Vce saturation voltage of a silicon
> transistor is something like 300mV,

While many transistors may well have saturation voltages of this level 
under typical operating conditions, satyration voltage is highly 
variable and may be far far lower than this. recall my circuit of a 
few months ago wher I drove a small transistor with a force beta of 
about 0.1 (Ib ~= 10 x Ic) and obtained a saturation voltage of about 
10 millivolt. (I am using it as a switch in an ADC measuring line and 
wanted minimal voltage drop across the switch relative to the voltage 
being measured.)(12 volt SLA battery).

> FCC Rules - RF !



        RM


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