This circuit from Motorola is from 1968, appearing elsewhere on this site. The transistors admit equivalent and the relay is of the sensitive type for low voltage, according to the power supply.
This circuit was found in a 1966 General Electric documentation. The circuit makes use of PUTs...
This circuit is a variation of the previous one (CIR10372) with a feature that allows the constant...
This precision circuit can be implemented with other operational ones. We found it in a...