chematic Of Transmitter
Schematic Of Receiver
Parts:
Part
Total Qty.
Description
Substitutions
C1, C2
2
0.1uf Ceramic Disc Capacitor
C3
1
100uf 25V Electrolytic Capacitor
R1
1
100K Ohm 1/4W Resistor
R2
1
1M Ohm 1/4W Resistor
R3
1
10K Pot
Q1
1
NPN Phototransistor
U1
1
741 Op Amp
U2
1
LM386 Audio Amp
SPKR1
1
8 Ohm Speaker
T1
1
8 Ohm:2K Audio Transformer
MISC
1
Wire, Board, Knob For R3, LASER Tube and Power Supply