This voltage inverter uses a small transformer. The circuit was found in the April 1995 issue of Electronics Now magazine. The output current is very low.
This circuit can measure frequencies up to just over 1 MHz and uses CMOS technology. The circuit is...
This variable oscillator was found in a Mullard transistors manual from 1960. The resistor R5 is...
This circuit, from a 1988 documentation, consists of an automatic temperature control using an NTC...