This simple injector circuit can actually be powered by voltages from 3 to 9 V. The frequency is given by C1 which can be between 4.7 and 10 nF. The CMOS can also be 4011.
September 2016 - can already be found at Mouser Electronics new integrated circuit from Texas...
This circuit distorts the voice of the speaker to the microphone thus making it difficult to...
This version of the circuit shown appears in several practical applications on this site. The...