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NATIONAL RQ-448

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Technic details

Specifications

Type:
FM / MW / SW 3-Band Radio Cassette Recorder
[Cassette Recorder Section]
Track system: 2-track monaural
Motors: Mechanical governor motor
Tape speed: 4.8 cm / s (1-7/8 ips)
Recording system: AC bias, AC erase
Program time: 1 hour with C-60 cassette tape
Frequency response: 50Hz to 10kHz
[Inputs sensitivity / impedance]
MIC: -72dB (0.28mV) / Applicable impedance 200 to 600Ω
AUX: -30dB (30mV) / 10kΩ
Output: EXT SP:
8Ω
Power output:
2W (Nominal)
2.5W (Max.)
Speaker:
4” PM dynamic speaker
[Radio Section]
Frequency range:

MW - 525 to 1605kHz
SW - 3.9 to 12MHz
UKV - 70 to 90MHz
Harmonic distortion: 0.2%
Sensitivity:
FM: 1µV / 50mW
AM: 70µV / m / 50mW
SW: 10µV / 50mW
Semiconductors used:
Transistors x 20
Power requirements:
AC 100V, 50 / 60Hz
DC 6V (Four “D’ size batteries)
DC 12V car / boat battery (With optional car / boat cord RP-915)
Power consumption:
6W
Dimensions (W x H x D):
328 x 197 x 83mm
Weight:
3.6kg
Year:
Around 1973

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