Zenith Data Systems
Videos
Zenith Data Systems Corporation was an American computer systems manufacturing company active from 1979 to 1996. It was originally a division of the Zenith Radio Company, after that company purchased
Top: Logo used from 1990 to 1996 Bottom: Site of former headquarters in Buffalo Grove, Illinois, from 1990 to 1996
The Zenith Data Systems Z-19 CRT-display terminal
Zenith's Z-171 portable computer, based on the Morrow Pivot II, made headlines when it beat IBM for a contract with the IRS in 1986.
Zenith's ZP-150, released in 1984, was one among the first wave of laptop computers.
Heathkit
Videos
Heathkit is the brand name of kits and other electronic products produced and marketed by the Heath Company. The products over the decades have included electronic test equipment, high fidelity home a
1947 Heathkit ad featuring the 5-inch oscilloscope.
An oscilloscope OL-1 from 1954, the company's first with a relatively small 3-inch CRT which allowed for a highly competitive price of US$ 29.50 (equivalent to $354 in 2025) for the DIY kit.
A Heathkit stereo tuner (AJ-43D) and amplifier (AA-21D) (1972)
A Heathkit stereo preamplifier (AA-141) (1962)