This circuit generates damped sounds imitating a drum or other percussion instrument with alteration of the double T components. We find it in an old American documentation.
Found in National Semiconductor publication from the 1980s. This gain-100 circuit can be...
We found this configuration in a 1975 publication. It can be implemented easily, as it uses only...
The high number of transistors on this radio for the medium wave range is an indication of its...