>>> I'm driving this with a square wave at 3MHz or less.
>
> I was going to suggest 555 timers, but 3MHz seems very fast for a 200mA
> source/sink (and too fast for a 555.)
>
> BillW

I was always impressed that the NE555 could source or sink 200mA. But,
this is probably a bit fast for it.

Thanks!

Harold



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