This precision reference circuit was found in documentation from the 1980s. It applies to other operational amplifiers. The power supply must be symmetrical.
This circuit can be used to test zener diodes up to 25 V using a standard multimeter. The voltage...
This circuit without any capacitor operates based in the time the transistor need to turn on. The...
This circuit is suitable for recovering vinyl media, having been found in an old sound magazine from...