Curtis Keyer Chip Developer Jack Curtis, K6KU, SK

The developer of the groundbreaking Curtis Morse keyer chip, John G. “Jack” Curtis, K6KU (ex-W3NSJ), of Granite Bay, California, died on June 4 after a long illness. An ARRL member, he was 87.

Growing up in Bradford, Pennsylvania, Curtis became fascinated with the “magic” of Amateur Radio as a youngster, and it eventually would become his career. After receiving a bachelor’s degree in electrical…

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