Note
QST, Feb 1948, p. 99.
QST, Jan 1949, p. 123.
QST, Dec 1955, p. 181. (Harrison Radio listed near the Vibroplex ad)
QST, Jan 1956, p. 123. (Henry Radio)
QST, Mar 1956, p 132. (Harrison Radio)
Walter Ashe catalog 1957 (probably issued in 1956), p. 14.
There was no mention of Mon-Key between 1950 and 1955.
The Electric Eye Equipment Company of Danville, Illinois brought the first commercial electronic keyer to the amateur market. The Mon-key produced uniform dots, dashes, and intervals between 10 and 35 wpm. It used three tubes and had a built-in paddle and monitor.
