EICO was established in New York City in 1945 by radio repair business owner Harry Ashley to manufacture electronic test equipment in kit form.
[1] A wide variety of test equipment remained the company's mainstay during the time it was in the electronics business, however EICO often augmented their product lines with what was thought fashionable.
For example, in the late 1940s it offered Geiger counters in response to public interest in uranium prospecting.
They also sold specialty test equipment for the ham radio market, including signal generators and grid dip oscillators.
[3] First located at 84 Withers Street in Brooklyn, New York,[4] and later at 33-00 Northern Boulevard in Long Island City,[5] EICO produced hi-fi products in the early 1950s to the mid-1960s with a line of tuners, preamplifiers, and amplifiers, available both in kit form or fully assembled.