Sony ST-2950F (1976)

Analogue tuner made ​​in Japan in 4 wavebands high quality with very good sensitivity and a refined presentation

Nice finish for this compact, solid and well built: real wood sides, finely brushedsteel facade, withits discreet decorative mesh screen-printed

The mixer HF (key High-Blend) is necessary for a perfect stereo FM. When a received signal is low, the background noise in stereo FM is important. The HF mixer thatsignificantly reduces background noise ...

The Mute ( (muting button) to switch without background noise from one station to another. A selector gives the ability to activate the built-in antenna or connect an external antenna

Specifications

FM Section

Tuning Range: 87,5 - 108 MHz

Antenna Terminals: 300 Ω (balanced), 75 Ω (unbalanced)

Intermediate Frequency: 10,7 MHz

Sensitivity (at 50 dB Quieting): 4,0 μV (mono), 50 μV (stereo)

Sensitivity (at 46 dB Quieting): 50 μV (stereo , 40 kHz deviation)

Usable Sensitivity: 2,0 μV (IHF), 1,7 μV, S/N =26 dB (40 kHz deviation)

S/N Ratio: 73 dB (mono), 68 dB (stereo)

Harmonic Distortion:

at 100 Hz = 0,2% (mono); 0,3% (stereo);

at 1 kHz = 0,2% (mono); 0,3% (stereo);

at 10 kHz = 0,2% (mono); 0,6% (stereo);

IM Distortion: 0,2% (mono); 0,3% (stereo)

Separation:

at 100 Hz = 35 dB;

at 1 kHz = 40 dB;

at 10 kHz = 35 dB.

Frequency Response: 40 Hz to 12,5 kHz, -1,5/+0,5 dB

Alternate Channel Selectivity: 50 dB (400 Hz)

Capture Ratio: 1,0 dB

AM suppression Ratio: 54 dB

Image Response Ratio: 45 dB

IF Response Ratio: 90 dB

Spurious Response Ratio: 75 dB

RF intermodulation: 60 dB

Sub-carrier Product Ratio: 50 dB

Muting Threshold: Approx. 5 μV

Output Level/Impedance: 750 mV, 5 kΩ at 100% modulation

MW Section

Tuning Range: 530 - 1,605 kHz

Antenna: built-in, external

Intermediate Frequency: 486 kHz

Usable Sensitivity:

250 μV/m (1,000 kHz) - built-in antenna;

100 μV (1,000 kHz) - external antenna.

S/N Ratio: 50 dB (50 mV/m)

Harmonic Distortion: 0,5% (50 mV/m, 400 Hz)

Selectivity: 50 dB (10 kHz)

LW Section

Tuning Range: 150 - 350 kHz

Antenna: built-in, external

Intermediate Frequency: 486 kHz

Usable Sensitivity:

500 μV/m (250 kHz) - built-in antenna;

100 μV (250 kHz) - external antenna.

S/N Ratio: 50 dB (50 mV/m)

Harmonic Distortion: 0,5% (50 mV/m, 400 Hz)

Selectivity: 50 dB (10 kHz)

SW Section

Tuning Range: 6 - 18 MHz

Antenna: built-in

Intermediate Frequency: 486 kHz

Usable Sensitivity: 30 μV (12 MHz) - external antenna.

S/N Ratio: 50 dB (5 mV)

Harmonic Distortion: 0,5% (5 mV, 400 Hz)

Selectivity: 45 dB (10 kHz)

General

Power Requirements: 110, 127, 220 or 240 V ac adjustable 50/60 Hz

Power Consumption: 23 W

Dimensions (W x H x D): 390 x 145 x 310 mm, (15⅜ x 5¾ x 12¼ inches)

Weight: 6 kg, (13 lb 4 oz) net