Is there a difference between an ammeter from a Dynamo / Magneto 6V set up and a bike with an alternator?
I ask because the ammeter that came out of the 1960 Super Rocket headlight shell may or may not be original but needs to be replaced as it is both mechanically, and therefore electrically, finished.
I would like to replace it with the right item and the bike is, of course, a Dynamo / Magneto 6V set up.
The hole in the headlight shell is 41mm dia (1-5/8?), as is the fairly tight fitting case of the ammeter, while the bezel of the ammeter is 46mm dia (1-13/16?)
The face on the ammeter reads, from the top down, AMPS, - + (on the scale) & LUCAS, MADE IN ENGLAND but the case is made of a cheap clear plastic which I must admit does allow good viewing of the loose and burnt out internal parts.
I have seen some on the internet with a similar face, but reading -8 to +8, but with what looks like a metal case.
Best regards to all.
Angus