Note
Radio News, Aug 1937, p. 69.
Radio Craft, Mar 1938, p. 523.
Radio News, Jan 1940, inside front cover. (reference to original price)
The 21-tube McMurdo Silver receiver had two RF amplifier stages and used L/C IF filtering. Chrome plating was used not only on its panel and cabinet, but on the chassis and many internal components as well.
References
Technical description, part 1. Radio News, Oct 1937, p. 213.
Technical description, part 2. Radio News, Nov 1937, p. 285.
Technical description, part 3. Radio News, Dec 1937, p. 347.
