The circuit presented is a documentation for radio amateurs from 1978. Implemented with common CMOS and linear components, it indicates CMOS logic levels.
The circuit of the figure can provide voltages of 5, 8.9 and 12.5 V at its output, all doing this...
In the figure we have an application of ON Semiconductor's own semiconductor manual from the 80's....
This circuit was found in Philips documentation from 1969. The components are from the time...