• Country
• Finland

• Manufacturer / Brand
• Helkama-Radio Oy; Hanko

• Year
• 1967 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 152351

• • Brand: Ergo

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

• Number of Transistors
• 26

• Semiconductors

• Main principle
• Superheterodyne (common)

• Tuned circuits
• 6 AM circuit(s)     10 FM circuit(s)

• Wave bands
• Broadcast, Long Wave and FM or UHF.

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

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

• Power out
• 20 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Helkama Stereo 7025 - Helkama-Radio Oy; Hanko

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

• Notes
• This Helkama Stereo 7025 is made in Hanko by Helkama Radio Oy Finland. 2 x 10 W. 20-20000 Hz. External speakers 4-8 Ohm.

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by Jouko Laukkanen. See "Data change" for further contributors.

• Other Models

• Here you find 53 models, 45 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Helkama-Radio Oy; Hanko