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Favorite Tube-Type Shortwave Receivers


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National NC-140

NC-140
General Coverage Communications Receiver Rating (1-5):
Made In: United States 1963 Voltages: 105-120 VAC 50-60 Hz 75W
Coverage: 540 - 30000 kHz Readout: Analog
Modes: AM/CW
Circuit: Double Conversion Superheterodyne. 8 Tubes. Physical: 15.75x8.75x9" 28 Lbs. 400x225x229mm 12.7 kg
Circuit Complement: 6BZ6 RF Amp, 12BE6 1st Mixer HF Osc, 12BE6 2nd Mixer/2nd Conversion Osc., 12BA6 IF Amp, 12AV6 AM Detector/Audio Amp, 6BN8 ANL/BFO, 6CW5 Output Amp and 5Y3GT Rectifier.
Features: " Head. Jack S-Meter RF Gain Antenna Trimmer BFO AGC Bandspread Tilt Bar Standby ANL Dial Lamp
Accessories: NTS-3B Speaker, XCU-109 Calibrator 1000 kHz
New Price: $190 Used Price: $100-200
Comments: Shown with optional NTS-3B speaker. Ranges: .54-1.6, 1.6-4, 4-10, 10-20 and 20-30 MHz. Amateur bandspread: 3.5-4, 6.9-7.5, 13.8-14.5, 21-21.5 and 26.6-30 MHz. Shortwave bandspread: 5.9-6.3, 8.6-10, 11.7-12, 14.6-15.4, 16.4-18 and 21.5-22.1 MHz.

National NC-173T

NC-173T
General Coverage Communications Receiver Rating (1-5):
Made In: United States 1947-1950 Voltages: 115/230 VAC 50-60 Hz
Coverage: 54-31 & 48-56 MHz Readout: Analog
Modes: AM/CW Selectivity: 6 position
Circuit: Single Conversion Superheterodyne. 13 Tubes. Physical: 19.75x10.125x12.5" 42 Lbs. 501x257x317mm 19 kg
Circuit Complement: 6SG7 Tuned RF, 6SA7 1st Detector, 6J5 Osc, (2) 6SG7 IF, 6H6 2nd Detector/AVC, 6AC7 AVC, 6SJ7 BFO, 6H6 NL, 6SJ7 Audio, 6V6 Output, VR150 Regulator and 5Y3GT/G Rectifier.
Features: " Head. Jack S-Meter Antenna Trimmer Bandspread RF Gain Dial Lamp Tone Phono Input Jack Mute AVC ON/OFF AF Filter Hinged Top Cover Standby
Accessories: NC-173TS Speaker, NC-173RS Rack Speaker, NFM-73 FM Adaptor
New Price: $190-200 Used Price: $120-200
Comments: Ranges: .54-1.6, 1.6-4.3, 4.3-12, 12-31 MHz and 48-56 MHz. Bandspread: 80, 40, 20, 10 and 6 meters. Requires a speaker. Has the functions of the Select-O-Ject audio filter built in. Similar to the NC-183, but with one stage RF and single ended audio output. Built-in power supply. Gray metal cabinet.
Variants: Model NC-173R is rack version.

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