This circuit is from Delco Radio found in a 1968’s documentation. The transistors are of the time and are not given information about the driver transformer. Note the high supply voltage.
We found this circuit in the January 1992 issue of Radio Electronics magazine. The circuit...
The division by eight using the 4018 is made as shown here. It isn't necessary to use additional...
May 2017 - Texas Instruments' new OPAx388 operational amplifiers can now be purchased from Mouser...