dragonflyspit wrote:
DSchmidt_2000 wrote:
What is your evidence that it is making less and less power over time? I don't see where you mentioned that. Is the engine not running?
I suspect the people who are happy with them haven't reached the failure time between 100 and 150 hours.
RPM the same? Engine speed = output frequency. Lower RPM, less output frequency, and AC motors run slower. Voltage output also drops with RPM.
Quieter can just mean less of a load on the engine, not necessarily that something is wrong with the engine.
Suspect as the Wizard wrote
a likely cause of failure is the 'diode & capacitor' used to supply the Dc field of the armature winding, heat is a killer of cheap capacitors, lack of field strength would mean lower output voltage
