Unijunction metronome (CB21701E)

This traditional metronome circuit is powered by voltages from 9 to 12 V and output drives a common speaker.

Current Sensor with TSC102, from STMicro (CB25412E)
The TSC102 integrated circuit from ST-Microelectronics consists of a current sensor system that, in...
APR345 Rectification Synchro Controller (COM114E)
September 2016 - It can be purchased from Mouser Electronics the new rectification controllers...
Touch operated lamp (CB20491E)
This circuit has its battery charged by a solar system. The circuit uses components that admit...