Note
QST, Aug 1936, p. 62. (First reference to NC-100)
Radio Craft, Dec 1936, p. 357.
QST Jun 1938. ("XA" introduced)
QST, Apr 1946, p. 103. ("ASD" $115.00)
National advertised the NC-100 as the perfected superhet. The 12-tube receiver covered .54-30 MHz in five ranges using a moving coil catacomb and had a built-in power supply. With the addition of the optional crystal filter, it became the 1OOX.
National restyled the NC-1OOX to create the 1OOXA. Changes included a new direct-reading dial, a tone control, and an S-meter to replace the "magic eye" indicator. The chassis inside the 11-tube receiver's new cabinet remained essentially the same as that of its predecessor, including moving-coil band switching.
References
Description. Radio News, Sep 1936, p. 145.
A few notes on the NC-100, QST Jun 1938, p. 55.
National's Notes, QST, Mar 1940, p. 73.
A few notes on the NC-100, QST Aug 1941, p. 55.
