Note
QST, Nov 1960, p. 1.
QST, Dec 1960, p. 189. (specs)
QST, Jan 1964, p. 173.
QST, Mar 1965 p. 103.
The SX-140 receiver was part of the “Halli-Kit” AM/CW station. It matched the HT-40 and gave coverage of the 80–6 meter amateur bands. Its IF was 1650 kHz with a crystal filter.
Available as a kit or fully assembled. A single conversion superheterodyne circuit covering the HF ham bands plus six meters, with a 25:1 tuning ratio.
Features include a headphone jack, RF gain, BFO, ANL, mute line, antenna trimmer, crystal calibrator, and standby switch.
The rear panel features screw terminals for: speaker, antenna/ground and T/R switching. Requires external 3.2Ω speaker.
Coverage (MHz):
3.5-4.0
7-7.3.0
14.0-14.4
21.0-21.5
28.0-29.7
50.0-54.0
IF: 1650 kHz
Modes: AM, CW, SSB
Tubes (5 total): (1) 6AZ8, (1) 6U8, (1) 6BA6, (1) 6T8, (1) 6AW8, (2) two silicon rectifiers.
