Hello.
I am trying to make ironcore inductors from some old transformers. Some things are not clear to me:
Please check photos, where I marked areas of interest.
Photo 01:
1. Which parts can touch? (see picture). Can any off B's touch Frame A?
2. How many insulated gaps in core? One or two? Insulation between B3-B4 and B1-B2? or one insulated, one just glued?
3. If only one core gap needs is insulated, then I need make sure that another one is conductive? So i need to be careful so glue doesn't insulate that junction by accident?
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Photo 02:
4. Can I build just one coil former, and wind all wire on it like shown in picture? Or do I need to wind two like original transformer, and connect in series?
5. If one coil is fine, D or H gap should be insulated? Or both?
6. Is there rough rule of thumb how much inductance I could get, knowing that this was normal 220V transformer. I probably should try winding some windings with random wire, and measuring inductance, since wire thickness should not make big difference in calculating?
I am trying to make ironcore inductors from some old transformers. Some things are not clear to me:
Please check photos, where I marked areas of interest.
Photo 01:
2. How many insulated gaps in core? One or two? Insulation between B3-B4 and B1-B2? or one insulated, one just glued?
3. If only one core gap needs is insulated, then I need make sure that another one is conductive? So i need to be careful so glue doesn't insulate that junction by accident?
__________________________________________________________________________________________________________________________________________________________________________________
Photo 02:
4. Can I build just one coil former, and wind all wire on it like shown in picture? Or do I need to wind two like original transformer, and connect in series?
5. If one coil is fine, D or H gap should be insulated? Or both?
6. Is there rough rule of thumb how much inductance I could get, knowing that this was normal 220V transformer. I probably should try winding some windings with random wire, and measuring inductance, since wire thickness should not make big difference in calculating?