Build this transistor based 12-volt or 6-volt motorcycle alarm using cheap off-the-shelf components.
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Motorcycle Alarm LED Module - Photograph

Free Circuit
SIMetrix
Simulator

Circuit Board

This is a photograph of Motorcycle Alarm LED Module. If an LED is lighting - you know that the corresponding trigger switch is closed - and that the alarm will activate if you turn it on. If all of the LEDs are off - you know that all of the switches are open - and that it's safe to switch the alarm on.
A Photograph Of Ron J's Motorcycle Alarm - LED Module


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