- Country
- Great Britain (UK)
- Manufacturer / Brand
- Murphy Radio Ltd.; Welwyn Garden City
- Year
- 1971
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 135746
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Transistors
- 2
- Main principle
- Superheterodyne (common); ZF/IF 470 kHz
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Dry Batteries / 9 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
- Power out
- 1 W (unknown quality)
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: B870 - Murphy Radio Ltd.; Welwyn
- Shape
- Portable set > 8 inch (also usable without mains)
- Dimensions (WHD)
- 254 x 165 x 76 mm / 10 x 6.5 x 3 inch
- Notes
-
A battery powered portable radio covering MW (187 - 570 metres) and LW (1070 - 1900 metres). In addition there is a push button pre-set for BBC Radio 1 on 247 metres MW. Housed in a two piece plastic cabinet with a dark blue vinyl cover. Socket for earphone, external loudspeaker or tape recorder. PP9 battery. Elliptical Loudspeaker 6 x 4 inch. Similar to the Bush TR230 model.
- Net weight (2.2 lb = 1 kg)
- 1.3 kg / 2 lb 13.8 oz (2.863 lb)
- Source of data
- - - Manufacturers Literature
- Literature/Schematics (1)
- - - Manufacturers Literature (Bush Murphy Service Information TP1784 dated 1/8/71)
- Literature/Schematics (2)
- Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (3019 dated 3 March 1972)
- Author
- Model page created by Howard Craven. See "Data change" for further contributors.
- Other Models
-
Here you find 366 models, 299 with images and 234 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Murphy Radio Ltd.; Welwyn Garden City