This transistorized circuit appeared in a Radio Electronics magazine in March 1958. The frequency range depends on the tuned circuit, being within a few megahertz.
The LM143 integrated circuit is a high voltage operational amplifier from National Semiconductor that is...
This power supply can provide 10 A currents. Its regulation is made by 7812 integrated circuit. The...
We found this circuit in the November 1992 Radio Electronics magazine. It works with both...