This circuit was obtained in a documentation from the National Bureau of Standards of 1968. The circuit is of low current and the output can be changed to voltages between 2 and 30 V.
This circuit, with the help of a 15 V x 1 A source, allows to measure small resistances,...
This circuit uses a piezoelectric transducer to produce sounds like a buzzer. Frequency is...
We found this circuit in a Texas Instruments optoelectronics manual. The audio modulator serves for...