This circuit was found in a 1967 US documentation. The circuit applies to modern general purpose transistors. The circuit has no offset. The power supply must be symmetrical.
Found in a book on transistors from the 50's. This receiver is very sensitive and features...
This circuit was obtained in a 1980s publication, but it can be easily assembled today, as all...
We found this circuit in the November 1992 issue of Radio Electronics magazine. The circuit has...