Note
QST, Dec 1953, pp. 8–13.
QST, Jan 1954, p. 5.
Allied Radio catalog 1955 (copyright 1954), p. 186.
Hallicrafters' top-of-the-line receiver, worth more than $6700 in 2023, adjusted for inflation. A double conversion superheteroyne unit with a 50 kHz second IF, crystal controlled second conversion oscillators, and precision gear-driven tuning. Bandspread calibrated for 160, 80, 40, 20, 15, 11, and 10 meters. Includes a 100 kHz crystal calibrator. Requires external speaker.
Other features include two position BFO (one provide increased output for SSB reception), antenna trimmer, delayed action AVC, S-meter, and an IF output jack.
The first IF on bands 1 and 3 to 6 is 2075 kHz. The first IF for band 2 is 1550 kHz. Second IF is always 50 kHz.
Selectivity is variable from 10 kHz to 250 Hz at 6 db down, in six steps.
Coverage: 535 kHz to 33.3 MHz
IF: see text
Modes; AM, CW, SSB
Sensitivity for 0.5 watts output:
10 µV from 535 to 1710 kHz;
1uV from 1690 kHz to 33.3 MHz
Image rejection:
80 db or better below 20 MHz
60 db or better above 20 MHz
Audio output: 10 watts, push-pull
External speaker: 3.2, 8, or 500-600Ω
Power: 120 VAC
Tubes: (2) 6CB6, (7) 6BA6, (1) 6U8, (1) 12AT7, (1) 6AL5, (1) 12AU7, (1) 12AX7, (2) 6V6, (1) 6C4, (1) 5U4, (1) 0D3 (VR-150), (1) 4H4 as 1st oscillator filament current regulator
