This circuit generates pulses whose frequency depends on C1. The circuit can be powered by voltages from 5 to 15 V. We find this configuration in a Signetics manual.
This basic voltage comparator circuit has a reference voltage given by a zener diode. The input...
This circuit was found in a Popular Electronics documentation from the 90s. It is possible to switch...
This solid-state relay (SSR) or shield was found in a 1995 Electronics Now. The transistor can be...