This is the New Simple Lie detector Circuit Diagram. The two probes
shown are held in the hands and the skin resistance applies bias to the
transistor.
The 5 k ohm pot is set for zero deflection on the meter. When the ' 'subject'' is embarrassed or lies, sweating on the hands takes place, increasing the bias to the transistor and upsetting the bridge balance.Link
New Simple Lie detector Circuit Diagram
The 5 k ohm pot is set for zero deflection on the meter. When the ' 'subject'' is embarrassed or lies, sweating on the hands takes place, increasing the bias to the transistor and upsetting the bridge balance.Link