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MINSK R-7

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Technic details

Specifications

Type:
Tube Radio Receiver with Turntable
Circuit:
Superheterodyne
[Frequency range]
LW: 150 to 410kHz (2000 to 731m)
MW: 520 to 1500kHz (577 to 200m)
SW1: 11.6 to 12.1MHz (25.8 to 24.8m)
SW2: 14.87 to 15.44MHz (20.17 to 19.43m)
SW3: 4.3 to 12.2MHz (69.76 to 24.59m)

Intermediate frequency:
468kHz
Real sensitivity:
100µV (LW, MW)
150μV (SW1-SW3)
Signal attenuation of the mirror channel:
45dB (LW, MW)
12dB (SW1-SW3)
Signal attenuation (At intermediate frequency):
34dB (LW, MW)
Sensitivity:
200mV (Pickup)
Output power amplifier:
2W (Nominal)
Harmonic distortion:
7%
Speaker:
2GD-M3
Input power:
3W
Impedance:
4.4Ω (400Hz)
[Controls]
Bass: + -7dB
Treble: +3 -8dB
Valves / Tubes:
1 x 6SA7 or 6A10 (Mixer and local oscillator)
1 x 6K7 or 6К9М (IF Amplifier)
1 x 6Х6 (Main channel detector and AGC detector)
1 x 6Ж7 (Pre-amplifier)
1 x 6V6 or 6Ф6 (Power Amplifier)
1 x 5Ц4С (Rectifier)
1 x 6Е5 (Setting pointer)
Accessories:
Fuse x 5
Bulb 6.3V x 0.28A x 3
Instruction manual

Power requirements:
AC 110 / 127 or 220V, 50Hz
Power consumption:
65W (Radio Receiver)
85W (Turntable)
Dimensions (W x H x D):
605 x 410 x 350mm
Weight:
22kg
Year:
1947

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