Powerdynamo brings new ignition & light 
to your vintage motorcycle



Technical Help



71 97 999 X0

magdyno to replace old Lucas  magdyno MO1 units
on motorcycles such as
Gold Star, Ariel, Panther, Triumph 3HW, Matchless G50, AJS 7R and many others (not for Royal Enfield, there is a problem with fitting the cog on the shaft)

with digital advance
The unit to replace the flat mount Lucas magdyno is on the basis of our Bosch-type replacement. That means a optical deviation from the Lucas unit. It does however have the correct axle height of 44.6mm and the correctly positioned dowel ( or screw) fastening holes at the bottom. Axle taper is 1:5 (as on most Lucas and Bosch units).

click pictures to enlarge

For pictures of installation on various motorcycles click links here:
Norton ES2 Norton Manx


Comet A (Miller) Triumph 3HW



(Click pictures to enlarge them!)
essential properties:
physical data

  • sturdy cast alloy housing, baseplate with screw in 8mm dowels
  • for overall dimensions see drawing here
  • weight ca. 5kg
  • replacable (wood screw mount) high tension cable
  • fixed red plus wire
  • fixed wire bundle of ca 1m length to connect external digital advance unit
  • digital advance unit as external entity in black plastic housing, dims 55x73x28mm

electrical data

  • high energy condenser discharge ignition
  • Digital advance predefined switch selectable advance profiles. advance of either 20° or 16° advance at unit shaft (that is 40° resp. 32° crankshaft advance). For graph see here
  • advance may be modified by about 10° after installation without changing chain or gear settings from unit to engine by shifting internal pickup
  • regulated lighting voltage of 14.4V (that is standard for 12V systems) with 60W load already at 1.000rpm 35W (Diagram).
  • may be used without battery, but will need in that case a high capacity condenser to enable correct regulator functioning

recommended add-ons


For improoved optics (more originality) bwe offer an add-on (dummy) contact breaker housing and springpost to hold it. Those parts are not needed for any function and have merely optical value. They are NOT part of the standard pack, but are optional extras.

optical enhancement kit
brown/black cover

optical enhancement kit
nickel plated cover

(enlarge pictures by clicking onto them)

71 95 999 80

71 95 999 85

Price  Price