thomas rubino wrote:You got me curious Joel; 1829 ! first patented spring tape! 1868 it was improved to modern standards! Way older than I would have guessed!
Kai Walker wrote:Had to burnish commutators too.
Undercut Mica, etc
And a mega-ohmmeter is a must in most cases.
Edit: and slip rings as well.
Used a stroboscope to check rpm's to ensure they run at the proper speed too.
A real motor-generator setup is probably the best for smooth power vs a DC generator running a static inverter.