• Country
• Soviet Union

• Manufacturer / Brand
• Experimental Plant 'Red October'; Odessa

• Year
• 1974

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 293605

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

• Number of Tubes
• 3

• Valves / Tubes
• 6Н2П 6П14П 6Ц4П

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 127; 220 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 3 W (4 W max.)

• Material
• Metal case

• from Radiomuseum.org
• Model: Low Frequency Amplifier - Усилитель Низкой Частоты UNČ-3 {УНЧ-3} [1974] - Experimental Plant 'Red

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 205 x 145 x 135 mm / 8.1 x 5.7 x 5.3 inch

• Notes

• Amplifier for scientific and laboratory use. This is the smallest of the УНЧ lineup, other models are УНЧ-5 and УНЧ-10. The first series (1960-1973) has octal tubes and a different tube cover and volume knob. The second series has been produced from 1974, with an extended frequency range to 12 kHz from the previous 8 kHz.

  Micro input sensitivity: 3.5 mV
  Phono input sensitivity: 100 mV
  Line input sensitivity: 10 V
  Signal/Noise ratio: 40 dB
  Frequency range: 40 Hz - 12 kHz

• Author
• Model page created by Paolo Canali. See "Data change" for further contributors.

• Other Models

• Here you find 1 models, 1 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Experimental Plant 'Red October'; Odessa