SPORTS AND OUTDOOR PLANS
Please Note: Plans do not include any parts!!!
PLAN13000 - METAL DETECTOR
Used with a standard transistor radio. Makes an inexpensive but sensitive metal detector. It features a beat frequency oscillator which generates an audio tone to the radio. This tone will change when passed over metal objects.
Available as a kit here.
PLAN13001 - ELECTRONIC MOSQUITO REPELLER
You've seen them advertised in sports magazines, now you can build your own. This repeller generates a 12000 Hertz signal which is said to drive mosquitoes away. Take it on camping or fishing trips or use it around the house.
PLAN13002 - ELECTRONIC FISH CALLER
Lower the unit into the water and this fish caller makes a slow clicking noise which other fish recognize as the sound a dying fish makes. Actually works. Bring that huge hungry fish right up to your baited hook.
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484 Lakepark Ave, Suite 59, Oakland,CA 94610