This circuit, found in a 1958 magazine, is for reference only, since the components are not easy to find today. The transistors are germanium types and power supply is made by common cells.
The four NAND gates of a 4011 are used in the clocked R-S flip-flop shown here. The circuit is set and...
This circuit generates low-frequency sinusoidal signals. The variable capacitor is dual and the...
This receiver can be used to receive signals from the previous circuit transmitter. The circuit is...