Vehicle alarm


Posted on Nov 10, 2012

This is a simple - easy to build - transistor based motorcycle alarm. It`s designed to work at 12-volts. But - if you change the relay for one with a 6-volt coil - it`ll protect your `Classic Bike`. The standby current is virtually zero - so it won`t drain your battery. The Support material for this alarm includes a detailed guide to the construction of the circuit-board, a parts list, a complete circuit description and more.


Vehicle alarm
Click here to download the full size of the above Circuit.

Notes: Any number of normally-open switches may be used. Fit the mercury switches so that they close when the steering is moved or when the bike is lifted off its side-stand or pushed forward off its centre-stand. Use micro-switches to protect removable




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