$20 · 3 Small DC Motors

1. Bigger one, from a hand-held vacuum cleaner: * with '62239, Johnson, 3M1913' printed on the side * 3.5 cm dia. x 5 cm long body (7.5 cm long with shaft and terminals) * ran off about a 10 VDC rechargeable battery * with a removable 7 cm dia. impeller on the front shaft $10 2. Smaller one, from an electric tooth brush: * up to 2 cm dia. x 3.5 cm long body (5 cm long with shaft and terminals) * ran off about a 1.5 VDC rechargeable battery * with a 12 cog brass gear on the front shaft $5 3. Another smaller one, also from an electric tooth brush: * up to 2 cm dia. x 3 cm long body (4.2 cm long with shaft and terminals) * ran off a 2.4 VDC rechargeable battery * with a 10 cog brass gear on the front shaft $5 Common info. * their rechargeable batteries wore out, but the motors work fine * run faster or slower with more or less than their above voltages (can be variable speed motors) * reverse rotation with reversed battery polarity * with 2 connection terminals at the rear (small motors have a red dot at +ve terminal) $20 total john.gruber@sympatico.ca, 613-824-6539