ES-06     Bi-stable (toggling) Touch Switch
(DC 9V)   (Relay contact : 2A)

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This kit toggles a miniature relay when you touch the sensor plate with your finger. The circuit works in the touch ON / touch OFF  (or bi-stable) mode.  The circuit design is based on classic transistor-transistor T-flip-flop which were once the building block of  archaic computers.  The kit is ideal for use a teaching aid to explain how Tr./Tr. T-flip-flip works.