Note
Radio News, Aug 1936, p. 111. ("new" and referred to only as the "Masterpiece."
Radio News, Sep 1936, inside back cover. (now called the Masterpiece V)
McMurdo Silver Times, Mar 1937 (vol 4, no 10) (attached)
140 kHz to 65 MHz.
Tubes: (6) 6K7; (2) 6H6; (2) 6L7; (1) 6J7; (1) 6Q7; (1) 6G5; (3) 6C5; (2) 6L6; (2) 5Z3.
References
Technical description. Radio News, Oct 1936, p. 217.
Technical description. Radio News, Nov 1936, p. 287.
Review. Radio News, Dec 1936, p. 349.