Uploaded February 2011 | Updated September 2026, 1 week ago
I noticed that in the previous video the very thin air coil do not produce strong flyback spike. So it was difficult to test the Doug Konzen circuit .
So i find out from my drawers an old testing machine , in fact a MO fan motor that i cut in 2 parts in order to get a U shape electromagnet which can spin a 6 pole rotor (all the same pole).
But this time i use it as a pure generator to see what happens when i short the coil.
The inductance of the coil is quite high (1.5 Henry ) due to the core. So i get very interesting results.
I hope this is interesting because the spikes seems to occure also at very low speed.
good luck at all
laurent
I noticed that in the previous video the very thin air coil do not produce strong flyback spike. So it was difficult to test the Doug Konzen circuit .
So i find out from my drawers an old testing machine , in fact a MO fan motor that i cut in 2 parts in order to get a U shape electromagnet which can spin a 6 pole rotor (all the same pole).
But this time i use it as a pure generator to see what happens when i short the coil.
The inductance of the coil is quite high (1.5 Henry ) due to the core. So i get very interesting results.
I hope this is interesting because the spikes seems to occure also at very low speed.
good luck at all
laurent
