ILER-20 MK2 SSB QRP Transceiver Kit Page 22
- Before beginning to wind, leave 15-20mm of wire, measured from the end of the wires to the outer
edge of the toroid. Now wind eight (8) turns on the toroid. Remember: Count one t urn for every time the
wire passes through the center of the toroid.
- Spread the turns evenly around the toroid.
- Cut the ends and separate the two windings.
- Use a sharp X-Acto knife to scrape t he enamel off the ends t hat will be soldered. The ends of the coils
that we have made need to be prepared in this manner before soldering them into the board.
- Using a multimeter in its ohm or continuity function, locate and mark the ends, identifying them as “a” -
“a1” and “b” - “b1”.
- Mount the toroid into the appropriate holes as marked on the circuit board.
Note: For greater clarity, the drawing shows one black wire and one red wire. In reality, both wires are of
the same color.
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