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G0RNN's coil winding helper

This is a fantastically simple and useful tool designed and built by Chick G0RNN and described to me by Ray G1OJP. Constructed entirely from tinplate from a large tin of baked beans or similar, the tool provides a third-hand making toroid coils easy to wind.

There isn't a lot more to say, the design is pretty self-explanatory from the photographs. The only thing to consider during construction of the tool, is that cut tin-plate will have sharp edges, so should be smoothed with emery paper or similar before soldering.

Three angles of tinplate are soldered to the lid of a tin-can
Various sizes of toroidal formers are accommodated and easily worked with