> The solution is easy and only costs two extra resistors.  Put the 
> existing
> resistor in series with the input transistor collector, not emitter. 
> Then
> add a base resistor for the input transistor.

Olin and Russell see eye to eye for a change :-).

And I like Bob's circuit as an example of minimal complexity when you 
can adjust conditions to make it work.



        RM 

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