Note
QST, May 1963, pp. 110-111.
A series of pre-wired circuit modules that can be combined to build receivers, transmitters, converters, VFOs, and other projects. "AOC" means Add On Circuits.
In October 1963 the company offered bundles that made specific products like a transmitter, a receiver, and a VFO. See, for example, Electronics World, Oct 1963, page 6.
The line expands through in 1964: QST, Mar 1964, p. 111.