On Jul 1, 2004, at 1:02 PM, Chetan Bhargava wrote:

> I have a bag full of old si diodes that look like 1N4001 but have a
> greater voltage drop. Connecting a few in series should drop the
> voltage.
>

Yeah.  Is it still simpler than your 555 blinky circuit?  I've done
this sort of thing: "hey! I can use a micro instead of a 555."  "but
wait, it needs ~5V.  And a decoupling cap.  And it doesn't do +/-200mA
output.  And...  Hmm; maybe that 555 wasn't so bad after all."

BillW

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