Note
QST, Feb 1938, p. 1.
QST, Feb 1938, p. 71.
Radio News, Mar 1938, back cover.
Lafayette catalog number 73, p. 109.
The Sky Challenger II contained Hallicrafters’ new "Infinite Image Rejector" circuit for improved performance on the 10 and 20 meter bands. It had no S-meter but offered output terminals for an external meter. Frequency coverage of the nine-tube receiver was 0.54 to 38 MHz in five bands.
IF: 465 kHz
Bandspread
BFO
Power: 120 VAC
Tubes: (1) 80, (1) 6F6, (1) 6J7, (1) 6Q7, (3) 6K7, (1) 6J5, (1) 6L7
