- Country
- Great Britain (UK)
- Manufacturer / Brand
- Columbia Graphophone Co.; London
- Year
- 1950 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 350165
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 5
- Main principle
- Superheterodyne (common); ZF/IF 470 kHz
- Wave bands
- Broadcast, Long Wave and Short Wave.
- Power type and voltage
- Alternating Current supply (AC) / 50 - 100 Hz, 200-250 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: C302 - Columbia Graphophone Co.;
- Shape
- Tablemodel, high profile (upright - NOT Cathedral nor decorative).
- Notes
-
Columbia Models C301 & C302 are All-wave, 5-valve superheterodyne receivers for use on an external aerial.
Provision is made for the connection of;
- External speaker with an impedance of 2.5 Ω.
- Gramophone pickup, magnetic type with an impedance of no less than 2,000 Ω. (For a moving coil pickup, a matching transformer is required)
On Columbia radiogram Models C401 & C402 a switch is provided for gramophone reproduction.
Same chassis as the Marconiphone T32A Model.
- Mentioned in
- - - Manufacturers Literature (Columbia Service Manual C301 & C302 radios, C401 & C402 radiograms dated Nov 1952)
- Author
- Model page created by Clive Forder. See "Data change" for further contributors.
- Other Models
-
Here you find 52 models, 30 with images and 23 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Columbia Graphophone Co.; London