This early ad for Heathkit appeared in Popular Science 70 years ago this month, May 1948.  These were among the Heath Company’s first offerings in electronic kits, which they offered from 1947 to 1992.

Their offerings included a regenerative receiver for $5.95, which covered the standard broadcast band and shortwave. It was available as either a two-tube battery set, or for AC operation, a three-tube set including rectifier tube.

Also included was a compact one watt 80 meter transmitter, complete with tube and crystal for only $3.95.