Touch switch activated relay

A very simple touch switch circuit diagram can be constructed using this circuit schematic . This circuit will turn on /off an electronic relay using  the same touch sensor . This touch switch circuit is composed from an current amplifier and a decimal counter circuit . the counter circuit is a CDB490 type and is capable to show at pin 12 states 1 and 0 that depends by the pulse applied of pin number 14 . Pulses applied to pin 14 are provided by the current amplifier  formed by that two BC transistors .

The circuit is require a 5volts power supply  and can be used to turn on /off any other electronic circuit .