16-02-2018, 01:41 PM
(This post was last modified: 16-02-2018, 01:47 PM by Murphyv310.)
Hi Jeffrey.
I used to make up two transistor assisted ignition drivers. These were for reducing the current through the points. Adding a reverse diode or a transistor with inbuilt reverse diode didn't work, you always had to have a cap across the collector emitter junction of between .22 and .25uf effectively to tune the coil. I did use BU208D transistors but also standard BU208's never had a failure on either type.
I used to make up two transistor assisted ignition drivers. These were for reducing the current through the points. Adding a reverse diode or a transistor with inbuilt reverse diode didn't work, you always had to have a cap across the collector emitter junction of between .22 and .25uf effectively to tune the coil. I did use BU208D transistors but also standard BU208's never had a failure on either type.
