This circuit is from Ferranti documentation from 1967. The operational is of the time, but the configuration is valid for modern equivalent components, including higher current capacity.
This is a common crystal oscillator configuration with 80s transistors. The circuit has the...
We found this decoder in a 1966 General Electric publication. It makes use of general purpose...
This old circuit uses na operational amplifier not easy to find in these days. But the circuit can be...