• Country
• Germany

• Manufacturer / Brand
• Reissmann Elektroakustik; Dresden (Ostd.)

• Year
• 1957

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 352540

• Number of Tubes
• 4

• Valves / Tubes
• ECC83 EL12N EL12N EZ12

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110; 220 Volt

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

• Power out
• 20 W (unknown quality)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Zusatzverstärker KR57 - Reissmann Elektroakustik;

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 420 x 230 x 180 mm / 16.5 x 9.1 x 7.1 inch

• Notes

• Erweiterung des Mischpultverstärkers KR 56
  Ausgang: 6, 20, 500 Ω

• Net weight (2.2 lb = 1 kg)
• 12.5 kg / 27 lb 8.5 oz (27.533 lb)

• Author
• Model page created by Wolfgang Müllner. See "Data change" for further contributors.

• Other Models

• Here you find 33 models, 27 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Reissmann Elektroakustik; Dresden (Ostd.)