This circuit was found in a 1967 Delco Radio documentation. The circuit has an input voltage of 250 V and the load current is 2 A. The transistors used are from that time.
We find this ultra-simple transmitter circuit that is nothing more than a very short range RF...
The circuit shown is from National Semiconductor's Linear Applications Handbook published in 1994....
This configuration that appears several times with variations on this site is from old American...