>> But Russell has taught me a good trick with two transistors.
>> Is working good with ~18Khz with 2N3904s.
>> The gif is made from Jinx Library(TM).:)

...

> For faster switching place a small capacitor in series with the base 
> drive resistor on the left hand transistor (not shown in your 
> diagram).


Aaron correctly pointed out that I SHOULD have said

                "in parallel with the base drive resistor"


        RM 

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist