High impedance stage (CB20564E)

This high input impedance amplifier stage was found in a 1963 documentation. The transistor germanium of the time.

Thermostat with Trigger (CB923E)
This circuit was obtained in an old English magazine (TSI) 1998 and consists of a Schmitt trigger...
ST Microelectronics STSPIN32F060x Three Phase 600V Controller
ST Microelectronics STSPIN32F060x Three Phase 600V Controller This STMicroelectronics component...
Temperature Sensor (CB1591E )
This circuit uses a 6-bit A / D converter from Philips, and has its output compatible with most...