The Ossie motor

[futuristic]

Ok I understand it now and I agree with you.

One more question: after your Garry motor fell apart, did you rebuild it for a more robut setup and if so did you measure torque on it?  Or are you aware of anybody who did some torque measurements on his motor?  Thanks, Gyula

Yes I did build more robust version, but I have made smaller diameter rotor and I used different bearing and motor performed poorly. After that failure I started building Newmans motor and never went back to Garrys motor.

[Jimboot]

Wow fantastic thread guys. Woopy I have switched nack to my original circuit without bridge or schottkys and I am seeing similar (though not as neat) as yours. I will be digesting everyone's analysis of that tonight.

Yesterday I successfully attached a DC motor up to my rotor. My rotor definitely did work. I need to stabilise the setup more tho as there was a great deal of wobble. My old circuit on 6V is doing about 1250RPM & when tuned is running with no drops. Tuning is the hard part. Looking forward to a more effective circuit without reeds.

Here is current scope shot.

[Jimboot]

This is getting to be a better picture for me. Currently at 895RPM I'm thinking that to try & get this running off a super cap is going to be a lot harder than either charging another battery or running a 6v Globe on it. When I put a 6v globe on it now my analogue meter drops about 0.5v slowly (haven't timed it yet). I'm wondering what is a better 'proof'. Having the rotor do work or running a globe for an indefinite period?
Thanks

[Jimboot]

RPMS are increasing on this setup as well. now up over 1000 from 895 in about 10mins. I've seen this happen a few times.

[Jimboot]

I'm attempting to create what was explained to me as
a tank circuit in the coils. I have placed a 2 variable resitors 180deg apart in the coils at 10ohm waveform below & setup. Voltage at 4.72 rpms 540. If anything interesting happens I'll report back.