This linear oscillator was found in a 1968 publication. The operational amplifier is from that time. Both the FET and the integrated support current equivalents.
Other series operational amplifiers, such as MC34072, MC34074, MC35071, MC35072, MC35074 d MC33071...
This TTL circuit was found in a 1978 technical documentation. The power must be supplied with 5 V....
We found this circuit in documentation from the 90s. The circuit uses components that are still...