Electronic Code Activated Circuit!

(Full schematic) I was playing around with a lm567 tone/frequency detector IC, and had the idea to put this very useful circuit together. If your looking for an electronic key that can be used to activate or deactivate electrical equipment, then this circuit is for you. Tampering with the connector on the electrical equipment will not get the circuit to trigger. The circuit must detect the proper frequency(within a narrow range), to activate the relay to turn on the electrical equipment.

lm567 calculator here:(You want a LOW BANDWIDTH result for your frequency!)

http://www.vk2zay.net/calculators/lm567.php

555 astable calculator here:

http://www.ohmslawcalculator.com/555_astable.php

Link to schematic is here:

http://tinypic.com/m/k0oyah/4

Thanks For Watching! ... https://www.youtube.com/watch?v=-5P1rtvqLnE