RFM3

• Country
• Great Britain (UK)

• Manufacturer / Brand
• Roberts Radio Co.Ltd., East Molesey, Surrey, UK

• Year
• 1984–1993

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 90088

• Picture
• Schematics

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

• Number of Transistors
• 2

• Semiconductors
• 2SC1674 2SC1675 TDA1220 TBA820

• Main principle
• Superheterodyne (common)

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

• Power type and voltage
• Batteries / addl. power jack / PP9: 9 / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 7.2 cm = 2.8 inch

• Power out
• 0.75 W (unknown quality)

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

• from Radiomuseum.org
• Model: RFM3 - Roberts Radio Co.Ltd., East

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 220 x 115 x 65 mm / 8.7 x 4.5 x 2.6 inch

• Notes

• A battery powered portable AM/FM radio covering VHF (88-108 MHz), MW (530-1610kHz)  and LW (150-265 kHz), housed in a small wooden case with teak end panels, leathercloth covering on back and above/below the black/silver grille on the front and with silver trim. From serial number 22001 three ICs, TA7358, TDA1220 and TDA1904. Turntable underneath except for late examples. Socket for optional Roberts PU609 mains PSU.

• Net weight (2.2 lb = 1 kg)
• 0.8 kg / 1 lb 12.2 oz (1.762 lb)

• Literature/Schematics (1)
• -- Original-techn. papers.

• Literature/Schematics (2)
• - - Manufacturers Literature (Technical Data)

• Literature/Schematics (3)
• - - Manufacturers Literature (Technical Data from Serial No. 22001)

• Author
• Model page created by Howard Craven. See "Data change" for further contributors.

• Other Models

• Here you find 100 models, 96 with images and 44 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Roberts Radio Co.Ltd., East Molesey, Surrey, UK