This circuit was obtained from an American technical manual from the 80's. The integrated circuit is an operational of the time that can be replaced by a modern equivalent.
) This variable frequency oscillator was found in an old American documentation. Transistors allow more...
We can also use the 4011 on this CMOS circuit that makes use of a crystal headset. The power...
Texas Instruments Standard Operational Amplifiers Texas Instruments makes available through Mouser...