Note
QST, Jun 1961, p. 142.
QST, Feb 1963, p. 152.
Allied Radio catalog 1964 (copyright 1963), p. 228.
Allied Radio catalog 1965 (copyright 1964), p. 332.
From the ad:
"This is a hand key, complete with a built-in transistorized CW oscillator, long life battery (also built-in) and an earphone. Great for learning the code. Will transmit over wires for miles to friends or can be used on VHF bands for sending ICW. Comes mounted on a 9′′×12′′ base with the Morse code printed on it and a supply of message blanks. Ready to use. Any number may be connected together."
