This small signal amplifier circuit was found in Motorola's 1969 documentation. The FET and the transistor can be of any type and is battery powered since the consumption is very low.
This circuit generates noise pulses for audio equipment probes. The circuit is from a 90’s 303...
Originally this 2000 circuit was designed to be a switch to the parallel port, but with 5 V or...
This small inverter that produces high voltage from a 6 V source was found in an American...