Not long ago I got hold of an Ernst Plank dynamo/motor.
Just gave it a good clean.
As a motor it already started to run wit a 1.5 V AA battery.
this week a second EP generator/motor joined the collection.
It's also in Wonderfull condition, just needed a good clean up.
Ages of dust and dirt, and the nickel turned black.
So took it appart clean the contacts and bended the contact plates back strait.
Gave the nickel a polish and here it is…
I tested it as a motor and a 2V it starts to run.
To video it I took 2X 1.5V.
Sorry for the shaked video, but holding a battery and filming is not so easy
Cheers,
Danny