This different circuit was patented and described in the Radio Electronics magazine of March 1958. In that section it used to present different configurations that received patents.
March 2017 - The new Texas Instruments TPA3244 class D amplifiers with power ratings from 60 to...
This circuit slows down a pulse applied to its input. The delay depends on the capacitor and...
We found this peak audio indicator in a 1980 publication. The M1 indicator can be 200 uA with the...