
Parts List
Transistors C2 -- 5
Q1-Q2 SK3004 C3, C4 -- 0.02
Resistors (ohms) Miscellaneous
R1 -- 430 Loop Antenna -- 200 turns of #25
R2 -- 10k enameled wire in square loop on
R3 -- 330k wooden frame. See text for details
R4 -- 6.2K Switch -- optional on either side of battery.
Capacitors (uF) 9 volt battery
C1 -- 10 RCA Jack to output to stereo (optional)
The antenna is 200 turns of # 25 enameled wire rapped in a square over two 48 inch pieces of wood nailed together in an �X� shape. You can run any type of wire from the antenna to the receiver. Lamp cord from a hardware store or speaker wire works well. Mount the loop on a pole that can be rotated. Plug the receiver into a stereo amplifier and listen. If you are somewhat near any power lines, you will have to rotate until the Hum goes to its� lowest volume.
You should then be picking up different pops and crackles. At different times of day there are different sounds produced do to a multitude of atmospheric conditions. Get used to the different noises that are common. You will be looking for any unusual sounds. Look outside if you do. It may be a UFO! If you hear Morse code, the Navy may still be using a 2 million watt transmitter located in Maine that transmits at 14.8kHz.
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