Heathkit GR-43 All Band Transistor Portable Receiver

Heathkit decided to market an "all band portable radio" in kit form.
They introduced the Heathkit GR-43A. This radio was marketed by Heathkit
from 1969 until 1972. The Heath GR-43A kit has a prewired FM tuner and
band switch assembly. The kit builder basically built the AM and FM IF boards,
as well as the audio board. The Heathkit radio uses 6 "D" cells installed in
battery tubes. The Heathkit GR-43A is heavy, weighing in at 17 lbs. with batteries.
The GR-43A is a excellent performing radio. The Heathkit GR-43A was pulled
from the market when Zenith threatened legal action for patent infringement.

In 1979, Zenith became the new owner of the Heath Corporation. As the new owners
of Heathkit, in an ironic twist of fate, Zenith would later market their
transoceanics through Heathkit.