So, take the wire, straighten
the wire. Take distance in 32- mm apart of the lower end of the
lower cylinder. Do hole in 1.5- 2- mm in the plastic tube. It
is possible to do with usual soldering iron. Tin one of the end
of the wire on length 10- mm. Insert the tinned end into the hole.
Coil 23- turns. (1) Do loop from the wire. Tin the loop. (2) Do
one more turn. Do loop from the wire. Tin the loop. (3) Do one
more turn. Do loop from the wire. Tin the loop. (4) Do one more
turn. Do loop from the wire. Tin the loop. Then coil the last
three turns. Then do hole in the plastic tube and insert in the
hole the wire. Figure 5 shows the tapped tuning inductor.
My advice: Coil first and last 3- turns with gap in 3- 4-
mm between the turns. It would be useful at final tuning of the
antenna. So the inductor should be look like it is shown on the
Figure 6.
|
Figure 5 Tapped Tuning inductor
|