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National 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: • ¼" 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
| 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: • ¼" 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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