This circuit was found in a Hands On Electronics with the suggested application an optical link for wireless TV headset or remote sound. The circuit is battery powered.
What is a dual frequency generator for? There are several possibilities of use for this circuit. The...
The circuit, illustrated in the figure, consists of the direct application of the ULN2003 in which...
This circuit was found in a Popular Electronics from the 90's. The output signal can be applied to a...