flyback info

[Findm-Keepm]

We used to swap tires on flybacks all the time - and pulse windings as well. Most of the time it worked, but occasionally the pulse winding transplant didn't go well. We had a Motorola that wouldn't converge, and somehow the pulse winding on the fly was bad. Motorola had some tips about the gripe in a bulletin, and sure enough that was our problem. After swapping out the pulse winding, we had no color - the winding was from a different flyback, and the keying pulse was oddly shaped, so we had to break down and buy the whole flyback - the tire was still good on the old fly, and we kept it around for a while, but never had a use for it.

Some Thordarson Flys for roundies have the same schematic for the tire - probably just a mounting configuration difference, or the presence/lack of other stuff like a circuit board mounted to the fly or a focus or horizontal center pot.

I suppose the key is determining what set it is for, comparing schematics/HOTs, and trying from there. I'll see if I can scan my Thordarson info for the roundie flybacks (Fly 277, others). Maybe it might help someone..

Cheers,