Equipment information

Hallicrafters Co. SX-101A Receiver
Hallicrafters Co.
Model SX-101A
Category: Radio, Communication
Group Receiver
Description Communications Receiver
                                    Your new Hailicrafters SX-I01 A Selectable Sideband Receiver
is precision built to bring you the finest in radio
reception. This fifteen tube (including rectifier and
regulator) dual conversion superheterodyne receiver tunes
the Converter (30. 5 MC to 34. 5 MCI, 50, 40. 20# 15 and 10
meter bands, plus several of the MARS frequencies on a large
10*1/2 Inch slide-rule type dial. For operating convenience,
only the band in use is illuminated You* 11 hear many
signals which would not be readable on most other receivers
The receiver provides for the reception of CW. AM. aid
single.sideband signals on all bands, the upper or lower
sideband being readily selectable by means of a front panel
control. This selectable sideband feature not only greatly
simplifies tuning of single-8tacbar.d signals but is also
useful in eliminating heterodyne interference when receiving
AM signals.
Unlike the ordinary dual-conversion receiver, your SX 101A
receiver employs dual conversion on al I bands, As a result,
images are practically non-existent A high order of
selectivity is made possible by the use of an adjustable 50.
75 KC second IF with four high-Q, permeability-tuned
circuits. Receiver selectivity is variable in five steps
from 500 cycles to 5 KC at 6 DB down and from 5 to 20 KC at
60 DEI down.

A tuned KF stage assures maximum sensitivity and a high
signal-to-noise ratio for outstanding reception of weak and
distant signals. An antenna trimmer, adjustable? from the
front panel, permits peaking of the RF stage to compensate
for loading effects of various antennas. A notch filter
circuit allow rejection of an
extremely narrow portion of the IF passband With the notch
filter, an interfering signal can easily he "notched out".
The position and the degree of notch rejection are
adjustable from the front panel
Outstanding frequency stability is achieved by the use of
concentric: air trimmers and ceramic coll forms In the 1st
conversion oscillator, extensive temperature* compensation,
voltage regulation of all oscillators, and the use of a
crystal-controlled 2nd conversion oscillator.

Tuning is accomplished by a precision gear drive tuning
mechanism to insure extremely close calibration and accurate
reset Ability Smooth flywheel tuning affords maximum
traverse speed and operating ease The tunable portion of the
receiver is designed to spread each handover most of the
dial, for easy and accurate tuning Dial graduations are
provided for every 5 KC on the 80, 40, 20, and 15meter
bands. On the  10 meter band there is a dial graduation for
every 25 kilocycle* and every 50 KC on the converter band. A
built-in 100 KC crystal calibrator provides marker signal at
every 100 KC on the dial for checking calibration accuracy.
A trimmer capacitor, accessible from the top of the chassis,
permits adjustment of the calibrating oscillator to exactly
100 KC by comparison with the frequency transmitted by
station WWW on ten megacycles. Band 7 of this receiver Is
for tuning in WWW for the purpose of zero-beating the 100 KC
crystal calibrator.

These manuals are available for the above equipment:

Hallicrafters Co. -- SX-101A -- Service and User Manual
File name Hallicrafter-6750-Manual-Page-1-Picture
Manual Type Service and User Manual
Pages 30
Size 2.97 Mbytes (3117057 Bytes)
Language english
Quality Scanned document, reading partly badly, partly not readable.
Upload date
MD5 30cf7988c9ab02b08947beec42c02a11
Downloads 285 since 19 May 2015
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