Found in American documentation, this switch is based on the 4093. The load will determine the supply voltage. The transistor is general purpose.
This analog thermometer was obtained from an English documentation. The sensor is a common diode...
This circuit is a kind of Hertz Loop that can be used to check the operation of transmitters and...
Two 3-terminal regulators like the LM317 can be used to "clip" a sinusoidal signal, in order to...