Build this transistor based 12-volt or 6-volt motorcycle alarm using cheap off-the-shelf components.
Circuit Description Ron's Circuits Write To Ron More Free Circuits Construction Guide
Comments Homer
Suggestions
Practical Guides Choosing Parts Testing Your Alarm More Motorcycle Alarms Firefox Optimised

Motorcycle Alarm No.1 - Photograph

Free Circuit
SIMetrix
Simulation

Circuit Board

This is a photograph of the transistor based Motorcycle Alarm No.1. The circuit features a timed output and automatic reset. It can be operated manually using a key-switch or a hidden switch. But add a small external relay and the alarm will set itself automatically - every time you turn-off the ignition. It's easily adapted to a 6-volt system - so it will protect your "Classic Bike". And the standby current is zero - so it won't drain your battery.
A Photograph Of Ron J's Transistor Based
Motorcycle Alarm No.1 - Circuit Board


Click here if you're new to constructing stripboard projects.

Circuit Description Ron's Circuits Write To Ron More Free Circuits Construction Guide