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National NC-270
| Amateur Band Communications Receiver |
Rating (1-5): |
| Made In: United States 1960-1964 |
Voltages: 105-125 VAC 50-60 Hz |
| Coverage: Ham. See Comments. |
Readout: Analog |
| Modes: AM/SSB/CW |
| Circuit: Double Conversion Superheterodyne. 10 Tubes.
|
Physical: 15.75x8.75x9" 28 Lbs.
400x222x228mm 12.7 kg
|
|
Circuit Complement: 6BZ6 RF Amp, 6BE6 Converter, 6BE6 Converter, 6BA6 IF,
6BA6 Product Detector, 6T8 Detector/AVC/ANL/Audio, 6CW5 AF Output, 12AU7 Calibrator/BFO,
5Y3GT Rectifier and 0B2 Voltage Regulator. Utilizes product and diode detectors.
|
|
Features: • ¼" Head. Jack • S-Meter • Notch • Antenna Trimmer
• RF Gain • Dial Lamp • BFO • Calibrator 100 kHz
• Mute • Standby • Tilt Foot • AGC
• ANL
|
|
Accessories: NTS-3 Speaker |
|
|
| New Price: $180-280 |
Used Price: $120-220 |
|
Comments: Ranges: 3.5-4, 7-7.3, 14-14.4, 21-21.5, 28-29.7 and 50-54 MHz. This
was the first model to feature National's dramatic "cosmic" blue metal cabinet. |
National NC-300
| Amateur Band Communications Receiver |
Rating (1-5): |
| Made In: United States 1955-1958 |
Voltages: 105-130 VAC 50-60 Hz
60W |
| Coverage: Ham. See Comments.
|
Readout: Analog |
| Modes: AM/SSB/CW |
Selectivity: 8/3.5/.5 kHz -6dB. |
| Circuit: Double Conversion Superheterodyne. 13 Tubes.
|
Physical: 19.5x11.25x15" 57 Lbs.
495x286x381mm 25.9 kg |
|
Circuit Complement: 6BZ6 RF Amp, 6AH6 HF Osc., 6BA7 1st Mixer, 6BE6 2nd
Converter , 6BJ6 1st IF Amp, 6BJ6 2nd IF Amp, 6AL5 Detector/NL, 6BE6 CW Osc/Het Detector,
12AT7 S-Meter/AF Amp, 6AQ5 Audio Amp, 5Y3GT Rectifier, OB2 Voltage Regulator and 4H4C
Current Stabilizer. |
|
Features: • ¼" Head. Jack • S-Meter • Phono Jack • Antenna Trimmer
• RF Gain • Dial Lamp • Tone • Cal Reset
• Mute • 40:1 Tune Ratio • Flywheel Tuning |
|
Accessories: NC-300C2 2M Conv., NC-300C6 6M Conv., NC-300C1 1.25M Conv.,
NTS-300TS Speaker, XCU-300 Calibrator NC-300CC Conv. Cabinet |
| New Price: $350-400 |
Used Price: $190-330 |
|
Comments: Ranges: 1.8-2, 3.5-4, 7-7.3, 14-14.4, 21-21.5, 26.5-27.5 and 28-29.7
MHz. The radio dial is also pre-calibrated for the use of optional converters: 49.5-54.5,
143.5-148.5 and 220-225 MHz. Turret-type band display. Two-tone gray enameled cabinet.
Requires a speaker. |
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