This simple SCR delay circuit for activating a relay was found in documentation from the 1980s. The components used are common today.
This circuit is from an August 1984 Radio Electronics magazine. It monitors the state of a RAM...
This sensitive photometer uses a photoelectric cell as a sensor. The circuit was found in an...
Silicon Labs CSP Package EFM32™ Leopard Gecko 32-Bit MCUs are part of the world's most energy...