This 3 and-a-half digit circuit was found in a Teledyne documentation from the 90s. The circuit uses a thermocouple as a sensor. The integrated circuit used is uncommon today.
This circuit, which can be used as a shield, was found in a 1980s documentation. The circuit can be...
This 555 timed touch switch was found in a 90s Hands-On Electronics. It triggers a buzzer, but a...
Found in documentation from the 90's, this circuit can be implemented based on modern operational...