Note
AQ: A module designed for installation in the Model A "Sideband Slicer"
DQ: A desktop version
QST, Apr 1955, p. 81.
Allied Radio catalog 1956 (copyright 1955), p. 201.
CQ, Mar 1962, p. 128. (Close out)
References
Brief description. Radio News, Jun 1955, p. 102.