Jinx wrote:
> I recommend Zetex transistors for the LED switching. They're
> heaps better than common junk-box transistors (eg 2N2222,
> BC548, BC337 etc)

Why?  An IR led is typically driven with 50-100mA.  I don't see why that
should be a problem for a junkbox transistor, like the 2N4401 I use for such
purposes.


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