- Twist the free ends of the wires from the microphone cartridge
together and feed the microphone wires through the PVC fittings from
inside the parabolic dish until the end of the wire reaches the^3 ⁄ 8 " hole.
If you have trouble pushing the wires around the 90° turn, take a stiff
wire with a hook shape in the end (we used some 10 gauge wire; many
building supply stores will sell you a few feet of this) and pull the wires
through the PVC fittings and pipe. - Use a piece of 20 or 22 gauge wire with a hook shape on the end to
pull the wires from the microphone cartridge through the^3 ⁄ 8 " hole. - Pull the wires through the^3 ⁄ 8 " hole, leaving enough wire inside the
parabolic dish for the microphone cartridge to reach the 1^1 ⁄ 2 " washer
with about two inches of slack left over. - Cut the wires to allow three inches to extend from the^3 ⁄ 8 " hole in the
pipe and attach each wire to a right-angle phono plug, as shown in
Figure 6-14.
You can use either a plug that requires soldering to the wire or one that
uses a screw to secure the wire, as we did here.
Black wire Red wire
Ground pad +V pad
Figure 6-13:
Solder wires
to the
microphone
cartridge.
130 Part II: Sounding Off!