Found in a 1965’s Electronic Design, this circuit operates with a voltage of 1.5 V. The relay can be of a reed relay or other type.
This 1 kHz triggered oscillator was found in an Electronics Now from the 90s. The circuit fires off...
This circuit converts a positive CMOS supply voltage to a negative one. We found it in a 90s...
Found in a 1964 Electronic Design, this circuit uses transistors from that time. Equivalent...