• Country
• Netherlands

• Manufacturer / Brand
• Erres, Van der Heem NV; Den Haag

• Year
• 1965

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 276732

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

• Number of Tubes
• 8

• Valves / Tubes
• ECC85 ECH81 EF85 ECC82 EM84 EL84 EL84 EZ81

• Number of Transistors
• 4

• Semiconductors
• 2SA234 AF126 AF126 AF126

• Main principle
• Superheterodyne (common); ZF/IF 453/10700 kHz

• Tuned circuits
• 6 AM circuit(s)     11 FM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110; 127; 220 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: RA657 - Erres, Van der Heem NV; Den

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 625 x 255 x 255 mm / 24.6 x 10 x 10 inch

• Notes

• Erres model RA657 (RA657FMS with built in stereo decoder) is the successor of model RA647 (1964) and has an additional transistorized 1st IF amplifier stage (with 1x 2SA234C transistor) for FM.

• Price in first year of sale
• 438.00 DFL

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by Mick Metselaar. See "Data change" for further contributors.

• Other Models

• Here you find 407 models, 324 with images and 222 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Erres, Van der Heem NV; Den Haag