This is an integrated clock circuit from the time and was published in the November 173 Radio Electronics magazine. The circuit uses an AE7218 as a base for restorers.
The LM11 operational amplifier is not common today. The circuit was obtained in the Linear...
Only one LED is turned on when S1 and S2 are pressed. The LED that will be on is just the...
This is one of the first transistorized receivers (2N107) published in the Radio Electronics...