This circuit was found in the magazine of radio amateurs 73 in a 90's edition. The components are current and the transistor is of general use.
This circuit was found in the July 1986 issue of Radio Electronics magazine. The circuit has a...
We found this electronic organ circuit in a 1987 documentation. The circuit should be powered by...
In the figure we have the basic configuration of an operational amplifier for audio signals. The...