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STA-7 catalog no. 31-1968

Country:  United States of America (USA)
Manufacturer / Brand:  Radio Shack (Tandy, Realistic, Micronta); USA
Year: 1979–1982 Category: Broadcast Receiver - or past WW2 Tuner
Main principle Superheterodyne (common)
Wave bands Broadcast (BC) and FM or UHF.
Details Hi-Fi equipment
Power type and voltage 60 Hz; 120 Volt
Loudspeaker - This model requires external speaker(s).
Power out 10 W (15 W max.)
from Model: STA-7 catalog no. 31-1968 - Radio Shack Tandy, Realistic,
Material Metal case
Shape Book-shelf unit.
Dimensions (WHD) 16.5 x 3.5 x 11.5 inch / 419 x 89 x 292 mm

From the 1979 catalogue description:

A Radio Shack Breakthrough! Unique AM/FM Stereo Superior to Anything in Its Price Range!

  • Equalization Switch for the Latest “Mini” Hi-Fi Speakers

  • Magnetic Phono and AUX Inputs

  • Tape Monitor

  • Loudness

Realistic STA-7. Radio Shack introduces a new concept in high-fidelity sound - a receiver that performs like conventional models, yet is very unconventional in size and price! It's made possible by our new equalization circuitry engineered for optimum results with ultra-compact “mini” speaker systems. The circuit uses both voltage and current negative feedback to tailor the low-end response for amazing 50 Hz bass that, until now, could not be achieved with mini-sized speakers. There's also a blackout dial, lighted signal strength meter, FM stereo indicator, plus push buttons for on/off, A/B speaker selection, stereo/mono. Bass, treble and center-detent balance controls. Phono-type and screw speaker terminals. 75 and 300-olm FM inputs. EQ circuit can be switched out for flat response for full-size speaker systems, too. Overload protected. U.L. Listed.

10 watts per Channel minimum RMS at 8 ohms from 20-20000 Hertz with no more than 0.5% total harmonic distortion

Amplifier. Frequency Response 15-30000 Hz +/- 2dB. Signal-to-Noise Ratio: 60 dB (phono); 65 dB (aux). Phono Input Overload: 100mv. Frequently Equalization For “System” Mode: +6.5 dB at 100Hz. FM Tuner Sensitivity (IHF) 2.4 microvolts (14.2 dBf). Capture Ratio: 3 dB Selectivity: 45 dB Stereo Separation: 34dB at 1 kHz. Total Harmonic Distortion 0.6% stereo, 0.5% mono. Signal-to-Noise Ratio: 60 dB. Interference Rejection: Rated excellent. AM Tuner: Sensitivity 200 microvolts/meter for 20 dB S/N. Image Rejection: 45 dB. Size: 3 1/2 x 16 1/2 x 11 ½". Power Requirement: 120VAC, 60 Hz.



Net weight (2.2 lb = 1 kg) 13.3 lb (13 lb 4.8 oz) / 6.038 kg
Price in first year of sale 159.95 US$
Mentioned in Radio Shack Catalog (1979, page 14)

Model page created by James Kirkpatrick. See "Data change" for further contributors.

All listed radios etc. from Radio Shack (Tandy, Realistic, Micronta); USA
Here you find 1048 models, 915 with images and 89 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.