Sorry in advance for this very basic question.
Ok, So you've seen those teeny tiny remote control cars that you connect to the transmitter to charge?
I removed the circuit board from the car and clipped the motor leads which I want to use to trigger an electric ignitor for a model rocket engine.
(the rocket engine is mounted on a full size RC car, but that's beside the point)
I measure the full 1.5vdc at the motor leads while the transmitter is operating, but have no idea what current is available; besides not enough to 'burn' the ignitor. I tried using the smallest relay I could get at Radio Shack to provide full battery power to the ignitor but no go. The motor output won't operate the relay. I think I should use a transistor? What type / rating etc should I use and how would you wire the circuit?
Ok, So you've seen those teeny tiny remote control cars that you connect to the transmitter to charge?
I removed the circuit board from the car and clipped the motor leads which I want to use to trigger an electric ignitor for a model rocket engine.
(the rocket engine is mounted on a full size RC car, but that's beside the point)
I measure the full 1.5vdc at the motor leads while the transmitter is operating, but have no idea what current is available; besides not enough to 'burn' the ignitor. I tried using the smallest relay I could get at Radio Shack to provide full battery power to the ignitor but no go. The motor output won't operate the relay. I think I should use a transistor? What type / rating etc should I use and how would you wire the circuit?