Andy Kay before Kaypro

Before NLS

He [Everett R. (Rich) Price, a former employee of Bill Jack Scientific Instrument Co.] also said the chief engineer for Bill Jack Scientific Instrument Co. was Andrew Kay who left in 1952 (exact date uncertain) to start-up Non Linear Systems in nearby Del Mar; that firm claims to have built the first digital voltmeter[11] and the NLS trademark is still in use on their products today. A webpage by Steven Johnson dedicated to NLS products and the history of the company can be found here.

Mr. Kay was a minor stockholder of Bill Jack Scientific in April 23, 1951 and he owed 27 shares of common stock while as president, Bill Jack owned 79,724 shares and Clayton Jack owned 33 shares; on that date a reduction of surplus capital in the amount of $279,724 was distributed and each share was valued at $3.27 (info: CA Dept. of State doc 236021 as amended May 4, 1951).
(https://ethw.org/Bill_Jack_Scientific_Instruments, Aug 18, 2025)