BRIEF SPECS
| Frequency Range | 50 kHz to 35 MHz |
| Selectivity | 0.5 kc, 2.5 kc, 5 kc (6dB down) |
| Sensivity | < .5 uV (SSB) |
| IF | 1650 kc & 50 kc |
| Modulation | CW, AM, SSB |
| Power | 85 watts |
| Dimensions | 8" x 18-3/4" x 9-13/16" (20 x 48 x 25 cm) |
| Weight | 28-3/4 lbs (13,2 kg) |
| Technology | tube |
| Price (for 1965) | $ 295 |
While a communication receiver is no T&M instrument it had some special use within a laboratory. For standardization of a frequency counter's time base against the wwv radio transmissions a receiver was needed to produce a beat frequency. The SX-122 was Hallicrafters top-of-the-line communications receiver from 1964 to 1968. Very detailed information you can get from the book 'Hallicrafters' of Chuck Dachis.
The pictures here don't tell you about the radio's bad exterior condition when I got it from the U.S. After washing the interior looks pretty like new, and a power-up was successful - I was able to receive many stations even with a 10 cm wire for antenna. But it took me two years to decide, that to regain the wonderful style it was necessary to rework the front panel. So I scanned the front panel and gave the data to a printing office which did a new drawing of the lettering based on my scan. After comparison of the new film and the old panel for any discrepancies the front panel was grinded. I didn't do the two-tone painting by myself. The reason was that the silk-screening does only apply on painted and baked paint because otherwise the background paint will be affected by the silk-screen paint's solvent.
The radio is now very perfect, but cost for this restauration was prohibitive. The HA-7 accessory was a plug-in unit which embodies a crystal oscillator to place birdies all 100 kHz. Dial accuracy can be checked and improved with it. I will build this accessory from scratch in the next months.
