The portable radio receiver "Telefunken 3971" (Famulus) was produced from 1958 to 1961 by the firm "Telefunken", Germany.
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7 transistors.
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Ranges: LW - 145 ... 285 kHz.
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MW - 515 ... 1625 kHz.
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IF - 465 kHz.
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Sensitivity to a ferrite antenna in the LW range of 1.3 mV / m, MW - 0.7 mV / m.
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Selectivity 28 dB.
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Maximum output power 300 mW.
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Loudspeaker 9 centimeters.
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The range of reproducible sound frequencies is 150 ... 4500 Hz.
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Power supply 6 volts from 4 AA cells.
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Model dimensions 240 x 120 x 50 mm.
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Weight with batteries 1.2 kg.
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