| Brand | poldhu radio kits |
|---|---|
| Type | detector |
| Decade | new |
| Country/Region of Manufacture | United Kingdom |
Check the listing for details. E.M.F. detector with Photocell tube valve DIY solder kit 6 Volt. Condition: New. Listed at 14.92 USD. This is an EMF detector, it uses the electrodes of the Photocell as the indoor aerial to detect alternating currents. The circuit uses the decade counter IC 4017. The circuit should respond to any alternating signal.
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