QST, Jun 1954, p. 77.
Allied Radio catalog 1955 (copyright 1954), p. 190.
QST, Apr 1955, p. 85. "New...with time sequence keying."
QST, Sep 1961, p. 88. (Adds 6 Meters.)
CQ, Apr 1963, p. 104.
Ranger II
QST, Nov 1964 p. 5.
QST, Jan 1965, p. 5.
QST, Apr 1965 p. 5.
References
Adding PTT. CQ, Feb 1957, p. 37.
Use with Heath SB-10. CQ, May 1964, p. 41.
