Note
QST, Oct 1970 p. 159.
QST, Sep 1972, inside front cover: (Robot goes to factory direct sales and lowers the price to $295)
QST, Aug 1973, p. 131. (70A)
QST, Feb 1975, p. 139. (70B. Sold concurrently with 70A)
QST. Nov 1975, p. 145 (70C and 70D. These both were release sometime earlier. C and D sold concurrently)
QST, Feb 1975, p. 139 (General info and kit to convert the 70 to the 70A)
QST, Mar 1975, p. 135. (70B being discontinued -- why did I think this)
QST, Jul 1975, p. 127. (70A/B still available)
QST, Jan 1976, p. 96. (A and B no longer available)
QST, Apr 1976, p. 97. (70C and D only)
Robot Research, Inc. sold the first commercial amateur slow-scan television equipment. The La Jolla, California company’s Model 70 monitor demodulated and displayed pictures sent by amateur SSTV stations.
