BSA Bantam Wipac Ignition Coil - D1, D3, D7 Models
Wipac type ignition coil suitable for Bantam D1, D3 and D7 flywheel magneto models.
Black wire is to earth and the red wire is to the points.
Twist and solder the HT lead to the tag on the coil body.
OD: 1+7/16" (47mm)
Height: 1" (26mm)