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.
This circuit was found in a 1977 Radio Shack documentation. The unijunction transistor can be...
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
This circuit offers excellent sound quality for headphones of 150 ohms or more. The circuit was...