We found this circuit in the April 1978 issue of Radio Electronics magazine. The power supply must be symmetrical, and the maximum recommended frequency is around 10MHz.
We found this interesting timer circuit or CMOS timer in a 1988 publication. The circuit is still...
This circuit can be powered by 2 or 3 small batteries. The resistor can have values between 220...
Found in a magazine 73 for radio amateurs, this circuit operates in the 144 MHz band, at a...