Gerald,
Thanks for the input. I will go to Radio Shack tomorrow and get the diode
bridge rectifier. At some time in the future I will probably switch the
electricity over. There is a good chance that I will find all the
information on the subject I may need on Tom Patterson's web page.
Thanks again,
Pete
'65
"Dr. Gerald N. Johnson" wrote:
> A fan motor has to be made special to run on both DC and AC or supplied
> with a rectifier. The modern permanent magnet field DC motor that has
> good speed regulation won't like AC.
>
> The only appropriate motor without a rectifier would be a series wound
> universal motor and I don't see any in Granger (1996) for 12 volts.
>
> A diode bridge rectifier (available at Radio Shack, pick one with 10 or
> 25 amp rating) can make the permanent magnet motor tolerate AC. Wire the
> motor leads to the + and - terminals (requires the motor winding not be
> grounded internally) and the supply to the ~ terminals.
>
> Far better for a long term solution to replace the univolt with a good
> DC battery charger and run everything on DC all the time. Statpower
> makes some good ones.
>
> Gerald J.
