Ducati CDI; VSE, VSX, VLX

Ducati CDI box ("external ignition coil"/"HT coil") for vintage Vespa VSX, VLX (with electronic ignition), and very late model (1977) Rally 200 scooters. If you have a Rally, please check your CDI and compare it with the photo to ensure this product fits your ride. A typical CDI module consists of a small transformer, a charging circuit, a triggering circuit and a main capacitor. First, the system voltage is raised up to 400-600 Volts by a transformer inside the CDI module. Then, the electric current flows to the charging circuit and charges the capacitor. The rectifier inside the charging circuit prevents capacitor discharge before the ignition point. When the triggering circuit receives triggering signals, the triggering circuit stops the operation of the charging circuit, allowing the capacitor to discharge its output rapidly to the low inductance ignition coil, which increases the 400-600 V capacitor discharge to up to 40 kV at the secondary winding at the spark plug. When there's no triggering signal, the charging circuit is reconnected to charge back the capacitor. Specifications: Overall dimensions: 3"L x .5"W x .25"H Compatibility: Vespa P125X (VNX*, '78-'81) Vespa PX150E ( VLX *, ' 81-'06) Vespa P200E (VSX, '77-'82) Vespa ET3 (VMB, '76-'83) Vespa Rally 200 (1977) *For P Series and small frame scooters with electronic ignition. About Mec.Eur.: Meccanica Europea's brand is synonymous of know-how and tradition. Established after World War II, Mec.Eur. has an enormous rage of spare parts and accessories, both for the last and vintage models, for vehicles on two wheels or three wheels, and for a whole range of Piaggio-Gilera and Lambretta. Made in Italy.