The circuit shown is from the National Semiconductor Linear Applications Handbook of 1994. using ADC0808. The circuit can handle data from up to 4 transducers with an 8-bit output.
This circuit uses opposing MOSFETs operating on a 6 to 15 V input voltage. The circuit is from...
The sensor of this circuit is a photodiode. Equivalent operations can be used, and the instrument can be...
Charcoal microphones are rare today. In the figure we have a circuit that shows the use of one of...