unknown: 139A (139 A);

The model 139 is a Chinese Military HF receiver, developed in late 60's. The type of radio used by Vietcong for guerrilla warfare in Vietnam jungle. It is powered by D cell battery, a battery compartment at the bottom of the radio: It is only a HF receiver, guerrilla used it to receive command to cordinate attack. Every small guerrilla cell would at least one of this back then. It works on HF frequency.

To thank the Author because you find the post helpful or well done.