Session 7 · Hour 1 · One motor, not two

1. Hour 1One motor, not two
2. Hour 2The new voice
3. Hour 3Midterm hands
4. Hour 4Seven weeks on one bus

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3. 

A quiz buzzer. A reversing motor.

CheckPress forward. Then reverse. Reverse must be silence. If both contactors kiss, you have built a flash. Cut it before 220. Interlock is two B-contacts that refuse to share a bus.