We found this circuit in an English publication from the 1980s. The circuit uses current components and can be tuned for frequencies between 300 and 1500 Hz.
This two-stage circuit has a voltage gain of 100 times, with a high input impedance. The circuit is...
July 2017 - The Texas Instruments TAS5782M Closed Feedback- Class D Amplfier Evaluation Module can now...
We find this circuit in a 1987 publication. It makes use of comparators constructed around the 741...