12-04-2017, 03:46 PM
Not much progress this weekend - I was tasked with other things by the domestic authorities. Thankfully the chicken coop is now repaired and on level ground...
I did take a look at the next stage of the O/P transformer wind, and decided I didn't like any of the paper I had available to go between the primary and secondary, so ordered some 5 mil "fish paper". This stuff will be nice and hard, protecting the fine wire and providing a good insulator between the 400V HT on the primary and the output winding. I then cut a small length of 18 a.w.g. wire for practice, to see how it behaves when winding using a dummy core. Hand wind looks to be better than the machine for this large gauge. The technique for securing the start, and handling of the wire - which seems soft annealed - looks to be no problem, so I'll crack on with it once the paper arrives.
Ed
I did take a look at the next stage of the O/P transformer wind, and decided I didn't like any of the paper I had available to go between the primary and secondary, so ordered some 5 mil "fish paper". This stuff will be nice and hard, protecting the fine wire and providing a good insulator between the 400V HT on the primary and the output winding. I then cut a small length of 18 a.w.g. wire for practice, to see how it behaves when winding using a dummy core. Hand wind looks to be better than the machine for this large gauge. The technique for securing the start, and handling of the wire - which seems soft annealed - looks to be no problem, so I'll crack on with it once the paper arrives.
Ed
I don't hold with furniture that talks.
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