bicycle trafficator

The author does not pretend to present a revolutionary design, but only wishes td give a positive contribution to safety on the road, because in his opinion direction indication is something that leaves much to be desired with cyclists and moped riders. The design described here is a trafficator circuit which consists of an astable multi- vibrator and a switching darlington. Since the trafficator must also operate when the cycle is stationary, a battery is provided; if the dynamo is not to be used at all, D 1 can, of course, be omitted.