Elenco Electronics EP-50 - Experiment #32: the Space Gun

-50-
Connect the wires according to the Wiring Checklist and
press the switch several times quickly. You hear a sound
like a space gun in the movies. You can adjust the “gun”
sound using the variable resistor. If you find it
inconvenient to turn the VR knob while pressing the
switch then just connect a wire across the switch.
Do you know how this circuit works? It’s basically the
same as the last circuit except for the 10mF capacitor,
which instantly charges up when you press the switch
and then discharges by powering the circuit for a few
seconds after you release the switch.
You can experiment with changing component values if
you like.
EXPERIMENT #32: The Space Gun
Wiring Checklist:
o 27-to-56
o 34-to-55-to-50-to-24
o 19-to-25
o 5-to-21
o 6-to-22
o 23-to-32
o 18-to-39
o 38-to-33-to-46
o 47-to-49
o 20-to-26-to-35
Schematic