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Hallicrafters SX-140 User Manual

Hallicrafters SX-140
21 pages
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OPERATING
AND
SERVICE
INSTRUCTIONS
COMMUNICATIONS
RECEIVER
MODEL
SX-140
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Hallicrafters SX-140 Specifications

General IconGeneral
Audio Output2.5 W
Power SupplyAC
ModesAM, CW
Power Supply Voltage117 VAC
Power Supply Frequency60 Hz
Tubes6BA6, 6BE6, 6AQ5
Image Rejection60 dB
Amateur Bands Range80, 40, 20, 15, and 10 meter bands

Summary

WARRANTY

Hallicrafters SX-140 General Information and Specifications

Receiver Overview, Features, and Controls

Describes the SX-140's build, sensitivity, coverage, and key operational controls.

Technical Data and Frequency Coverage

Lists specifications, band coverage, IF, and FCC limits.

Operation Notes and Calibration Aids

Advice on careful operation and using calibration aids.

Hallicrafters SX-140 Installation and Setup

Unpacking, Placement, and Power Requirements

Guide for unpacking, selecting location, and connecting power.

Antenna Connection Options

Instructions for connecting single-wire and dipole antennas.

Hallicrafters SX-140 Operating Procedures

Understanding Operating Controls

Explains FUNCTION, BAND SELECTOR, CAL-OFF, ANL-OFF, RF GAIN, AUDIO GAIN, SELECTIVITY-BFO, MAIN TUNING, CAL RESET, ANT TRIM.

Receiver Operation Modes

Procedures for Standby, CW, SSB, and AM reception tuning.

Using the Carrier Level Meter

Guide on how to use the carrier level meter for AM signal indication.

Hallicrafters SX-140 Service and Alignment

Component Replacement and Chassis Access

Instructions for replacing tubes, lamps, and removing the chassis.

Meter Adjustment and Dial Cord Repair

Procedures for adjusting the carrier level meter and restringing the dial cord.

Alignment Procedures

Details IF and oscillator alignment using crystals or signal generators.

Troubleshooting Receiver Issues

A chart listing common problems, causes, and solutions for the receiver.

Hallicrafters SX-140 Service Parts List

Component Identification and Part Numbers

Lists capacitors, resistors, switches, tubes, coils, and other parts with their numbers.

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