• Country
• Bulgaria

• Manufacturer / Brand
• Elprom KB (Kliment Voroshilov Works, Slabotokov zavod); Sofia

• Year
• 1961 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 237190

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

• Number of Tubes
• 6

• Valves / Tubes
• ECC85 ECH81 EF89 EABC80 EM84 EL84

• Number of Transistors

• Semiconductors
• Tr.Gl.=Metal-rectif.

• Main principle
• Superheterodyne (common); ZF/IF 468/10700 kHz

• Wave bands
• Broadcast, Long Wave, Short Wave plus FM or UHF.

• Details
• Record Player (not changer)

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

• Loudspeaker
• 3 Loudspeakers

• Power out
• 2.5 W (undistorted)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Akkord - Акорд 10 - Elprom KB Kliment Voroshilov

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes

• Wave Bands:
  MW: 520-1600 kHz
  LW: 145-350 kHz
  SW: 5,8-18 MHz
  FM: 64-73 MHz

  Differences to model Akkord A10 currently not known.

• Author
• Model page created by Simeon Nikolov. See "Data change" for further contributors.

• Other Models

• Here you find 66 models, 61 with images and 50 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Elprom KB (Kliment Voroshilov Works, Slabotokov zavod); Sofia