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Technics ST-9031

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Technic details

Specifications

Type:
FM / AM stereo tuner
[FM tuner section]
Reception frequency:
76MHz to 90MHz
Practical sensitivity:
12.8 dBf (1.2μV, IHF '58, 75Ω)
S / N ratio 50dB sensitivity:
Mono - 18.1 dBf (2.2μV, IHF '58, 75Ω)
Stereo - 39.5 dBf (26μV, IHF '58, 75Ω)
Total harmonic distortion (1kHz):
Mono - 0.08%
Stereo - 0.1%
S / N ratio:
Mono- 75dB
Stereo - 70dB
Frequency response:
20Hz to 15kHz, +0.2 -0.8dBf
Selectivity:
75dB
Capture ratio:
1dB
Image interference ratio:
80dB (83MHz)
IF interference ratio:
100dB (83MHz)
Spurious interference ratio:
95dB (83MHz)
IM interference ratio:
90dB (83MHz)
AM suppression ratio:
55dB
Stereo separation:
50dB (1kHz)
40dB (100Hz, 10kHz)
Leak carrier:
-60 dB (19kHz, 38kHz)
Antenna terminal:
75Ω (Unbalanced type)
[AM tuner section]
Reception frequency:
525kHz to 1605kHz
Practical sensitivity:
30μV, 250μV / m
Selectivity:
40dB
Image interference ratio:
45dB (1,000kHz)
IF interference ratio:
40dB (1,000kHz)
Output voltage:
0.6V
Power supply voltage:
AC 100V, 50 / 60Hz
Power consumption:
12W
Dimensions (W x H x D):
430 x 97 x 300mm
Weight:
4.5kg
Year:
Around 1979

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