Graham. wrote:
"Man at B&Q" wrote in message
...
On Jan 28, 10:15 am, wrote:
Anyone know where I can get a battery operated motor that runs about 7
RPM .I can get from Maplins a Glitter Ball one but it runs at only 3
RPM . A microwave motor is around 6 but that's a mains motor and I'd
prefer a battery one if such a beast exists ...if not it looks like a
microwave one will have to do .

Exactly 7 or something close? What sort of quality? What sort of power
output? What sort of speed regulation?


run a 3 rpm one at double the voltage and a bit.

Most of those crappy DC motors will take loads more voltage before the
brushes start skipping.


Our model aircraft use the 3v toothbrush motors on around 10v...