Note
Ham Radio, Nov 1971, p. 118.
Ham Radio, Oct 1972, p. 87. ("B" version)
QST, Feb 1973, p. 120.
Ham Radio, Dec 1974, p. 90 (attributed to Data Signal)
QST, Jan 1975, p. 130.
The Space-Matic is similar to the the model 500 Memory-Matic, but without the memory functions. Instant self-starting keyer with self completing dots, dashes and associated automatic dot, dash character and word spacing. Adjustable weighting: Speeds 3 1/2–85 wpm. Built-in sldetone generator and speaker. See Memory-Matic for additional details.
The "B" version, released late in 1972 included rear panel switches to disable dot and/or dash memory, or word/character spacing.
