Note
QST, Mar 1939, pp. 1–10.
Lafayette catalog number 78, p. 148.
The SX-23 "Skyrider 23" was introduced in the March 1939 issue of QST with a full ten page spread, complete with an introduction by Bill Halligan himself. Promoted as "driftless" receiver (Radio Craft, Aug 1939, p 127).
The "deco" design is unique among Hallicrafters products. Chassis and transformer covers are all painted dark gray and stamped with the Hallicrafters logo.
Features include BFO, AVC, ANL, RF gain, S-meter, standby mute, tone control, and a calibrated bandspread for the ham bands. Selectivity in five steps.
Requires and external speaker of 500 or 5000Ω. According to the advertising, the PM-23 speaker was included with purchase of the SX-23.
Coverage: 540 kHz to 34 MHz
IF: 455 kHz
Calibrated bandspreads for 80, 40, 20, and 10 meters
S-meter
BFO
ANL
Crystal filter
Variable selectivity
Power: 120 VAC, 110 watts
Tubes (11 total): (1) 80, (1) 6F6, (1) 6B8, (1) 6H6, (1) 6SQ7, (2) 6SJ7, (3) 6SK7, (1) 6SA7
