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.
The circuit shown has a maximum output current of 1.5 A. We find this traditional configuration in the Linear...
We found this circuit in a 1977 National Semiconductor Databook. The circuit can use other FETs...
This decoder filter was found in a 1975 documentation. The integrated circuits can be 741. The...