We show an oscillator that produces rectangular TTL signals based on inverters. Inverters can also be designed with standard NOR or NAND gates. The circuit must be powered by 5 V.
We find this circuit in a Popular Electronics of the 80's. The frequency range depends on C1 and...
The circuit shown in the figure uses general purpose NPN transistors and can be used to generate...
This circuit with a double-gate MOS transistor was found in a Popular Electronics from the 90's....