The circuit shown in the figure below is from the 1993 Linear Technology Applications. The operational ones used are uncommon and the use of equivalents can be analyzed.
This circuit may be modulated by a very low frequency signal, for example to obtain the vibrato...
In this circuit, the LED Will blink in a presence of na áudio signal in the input. Gain is...
This high voltage regulator uses only two passive components. The output is 100 V, but replacing...