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.
The filter shown in the figure, using only an operational amplifier, is characterized by allowing 1...
Found in a 90s American documentation, this circuit can be used as a shield, just change the...
Found in a Philips' 1968 documentation, this circuit is slightly different from the previous one. The...