Hi Grant
This might be what your looking for.
https://www.electronicspoint.com/forums/threads/555-timer-reverse-polarity-circuit.250411/
Unfortunately you will need to register to see the schematic if its still
available.
Good luck.

Sam L.


On Wed, Apr 8, 2020 at 2:00 PM nessie <[email protected]> wrote:

> >
> > Hi Listers:
> >          Does anyone have a reasonably simple schematic for making
> >          Current reversing circuit?
> >                   Thank You. Regards Grant.
> >
>
>
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