Could someone help me optimise this PSU for a PIC please.

The circuit counts mains cycles and supplies a small motor with
9V for about 1/2 second (dumped from the 3300u), adjustable
timing / transistor drive for this from a 4001 one-shot. Functionally
it works OK, what I'd like to have rendered efficient and safe is the
250VAC to 9V/5V part, correcting especially any stresses that
anyone can see in the components used.

I can't detect any heating and voltages seem to be stable. It's the
type of transformerless circuit I build once in a blue moon and I
haven't a good reference for it, basically modifying the first one
made some time ago.

Any suggestions ?

Jinx




Attachment converted: wonderland:mainspsu.gif (GIFf/JVWR) (000107EF)