untitled

(Elliott) #1
Be sure to heed all the safety precautions about soldering that we give
you in Chapter 2. For example, don’t leave your soldering iron on and
unattended. And just in case a bit of solder has an air pocket and pops,
wear your safety glasses!

Coaxing the coil ..................................................................................


Take your ferrite rod, 26 gauge enamel-coated wire, some electrical tape, and
glue and get ready to make the coil by following these steps:


  1. Wrap electrical tape around the ferrite rod.


This protects the enamel coating on the wire from the ridges that run
along the rod.


  1. Cut two small pieces of electrical tape, about^1 ⁄ 4 " wide, and place them
    in a handy spot.


Wires to potentiometer

Wires to speaker

Figure 8-12:
Wires
soldered to
potenti-
ometer and
speaker.


Chapter 8: Surfing the Airwaves 179

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