Colin wrote:
> Russell wrote:
> :: 2:1 ish capacitor voltage pump
> ::
> :: Vin   D1A
> :: D1K   LED+
> :: Vin   Q1+
> :: Q1-   Q2+
> :: Q2-  gnd
> :: Vin  D2A
> :: D1K R1A
> :: R1B  D2K
> :: D2K  C1A
> :: C1B Q1- (=3D3DQ2+)
>=20
> Quick schematic of above using AutotraxEDA

Obviously not. What keeps Vin from destroying the LED via D1?

Russell never said where the cathode of the LED goes, and what's the purpos=
e
of D1 anyway? If you just leave it out, then the LED is simply on at less
than full brightness when not flashing.

-- Dave Tweed
--=20
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