This small circuit for the medium or short-wave range, depending on the coil, was found in a publication from the 50's. The transistors are from that time. The circuit transmits signals picked up by the microphone.
This small circuit for the medium or short-wave range, depending on the coil, was found in a publication from the 50's. The transistors are from that time. The circuit transmits signals picked up by the microphone.
