This circuit with TTL compatible output was found in a 1968 US documentation. The circuit is powered by 5 V and the frequency can be changed by changing the crystal.
This circuit is from a 90s Popular Electronics. The integrated circuit is from that time. The...
This powerful amplifier with output in complementary symmetry is from an old documentation....
This two-transistor circuit was found in a 1966 US documentation. The power transistors are of the...