• Country
• United States of America (USA)

• Manufacturer / Brand
• Radio Shack (Tandy, Realistic, Micronta); USA

• Year
• 1981 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 218253

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 0

• Valves / Tubes
• unknown_Tube

• Number of Transistors
• 38

• Semiconductors
• 2SC1815 2SC732 2SA953 2SD314 2SC1815 2SD571 2SB605

• Main principle
• Audio-Amplification; none

• Wave bands
• - without

• Details
• Hi-Fi equipment

• Power type and voltage
• Alternating Current supply (AC) / 220-240 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Realistic Wide Range Stereo Frequency Equalizer 31-2000A [220-240V] - Radio Shack Tandy, Realistic,

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 425 x 250 x 100 mm / 16.7 x 9.8 x 3.9 inch

• Notes
• Equalizer stéréo large bande.
  Réponse en fréquence: 5-50000 Hz +0.5dB -1dB.
  Portée du réglage de tonalité : +-12dB à 31, 62, 125, 250, 500, 1000, 2000, 4000, 8000, 16000 Hz.
  Distorsion harmonique: 0.02%.
  Distorsion d'intermodulation: 0.02%.
  Portée dynamique: 10V rms max.
  Gain total: 0dB.
  Impédance d'entée: 60Kohms.
  Impédance de sortie: 10 ohms.
  Some transistors equiped more than once. Made in Korea.

• Price in first year of sale
• 999.00 FF

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by Jean Marchal. See "Data change" for further contributors.

• Other Models

• Here you find 1299 models, 1181 with images and 117 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio Shack (Tandy, Realistic, Micronta); USA