This TTL circuit found in the September 1996 issue of Electronics Now magazine doubles the frequency of a rectangular signal. The power supply must be 5 V.
We found this circuit in the 1994 Linear Applications Handbook from National Semiconductor. The...
This circuit is from an Electronics World of 1968. The transistors are of the time and the power...
This circuit checks the infrared emission of a common remote control. We found it in the March 1993...