The figure shows how to associate flip-flops in a shift register to obtain a lower frequency sinusoidal signal. The circuit is from a Radio Electronics from November 1976.
We found this circuit in the 1974 Ferranti transistor manual. Transistors are from the time, being...
This temperature sensor circuit was found in an old American documentation. The components used...
This separator filter is from an old publication. The capacitor can have 10 to 47 uF of the...