We found this circuit in the May 1972 issue of Radio Electronics magazine. Its purpose is to teach logic using integrated circuits of the TTL family. The 5 V power supply is included.
Found in 1967 General Electric documentation this circuit uses a PUT and a diac to generate 1 kHz...
We found this circuit in documentation from Linear Technology of the 80s. The circuit uses...
This 800 Hz sinusoidal oscillator was found in a 1970s American documentation. The transistor...