This circuit has an accuracy of 1%. The components used must be precision as well. The input frequency range is 40 Hz to 10 kHz with the indicated components.
This circuit is suggested by Texas Instruments in old documentation. The components depend on the...
This circuit is primarily intended for the calibration of common radio IF steps using the...
We find this circuit in a technical documentation of 1976. The transistors can be the BD135 and...