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COINPUSHER MOTOR SPEED " TO FAST "

I'M BUILDING A COINPUSHER WITH A 12 VOLT SYSTEM AND I'M HAVING TROUBLE WITH THE MOTOR SPEED I'VE TRIED A REHOSTAT AND IT SMOKED WHEN I HOOKED IT TO THE BATTERY AND ADJUSTED THE SPEED WITH IT ... THE MOTOR IS A BLOWER MOTOR FOR THE A/C SYSTEM OF A CAR .. ANY HELP WOULD BE USEFUL !!! PUT "MOTOR" IN SUBJECT IF YOU RESPOND

LASNIPER@MSN.COM

ARJOON3 years ago
http://www.electronicecircuits.com/electronic-circuits/12v-dc-light-dimmer-circuit-using-555-timer-ic/a dc light dimmer can als3o be us3ed but ins3tead of the lamp place connect the motor. don;t forget to add a 1n0007 diode w9hich w9ill prevent damaging the transi33stor.
SNIPER,LA (author)  ARJOON3 years ago
THANKS FOR THE INFO , I DID NOT KNOW THAT THEY MADE A DC DIMMER SWITCH .. I TRIED AN AC DIMMER BUT IT DID NOT WORK ..
WOULD RADIO SHACK HAVE THE 1n0007 DIODE ?

THANKS AGAIN
That motor will take a huge amount of current, which is why the rheostat smoked. Either reduce the speed with a belt drive or gears, or find a something like a windscreen motor instead.
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