This circuit doubles the frequency of a rectangular signal applied to its input. The circuit has a 30 kHz input to obtain 60 kHz signals. We found it in a 1964 Electronic Design.
This circuit hás a Power output of more than 1 W. It is used in small experimental or low power...
This circuit was found in a former Popular Electronics. The timing is given by R1 and C1, R4 and...
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...