[sdiy] More VCO fun

[ASSI]

On Tuesday 08 December 2009, Oren Leavitt wrote:
> I like Achim's idea of using a push-pull device like the LM319 to
>  drive the JFET switch.

The LM319 has an open collector output just like the other comparators 
that have been discussed.  To properly work at the advertised speed it 
should have a pull-up on the output, the datasheet shows how much 
current you would want for a given switching speed.


Achim.
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