- Country
- Great Britain (UK)
- Manufacturer / Brand
- Eddystone (Brand), Stratton and Co., Ltd., Eddystone Radio Ltd.; Birmingham
- Year
- 1927
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 77402
- Number of Tubes
- 4
- Valves / Tubes
- Main principle
- TRF without regeneration; Neutrodyne
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - For headphones or amp.
- Material
- Wooden case
- from Radiomuseum.org
- Model: Scientific Four - Eddystone Brand, Stratton and
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Dimensions (WHD)
- 23 x 9 x 9.5 inch / 584 x 229 x 241 mm
- Notes
-
Scientific Four.
- It employed a neutralised triode RF stage.
- Microtune dials.
- Plug-in coils 8-100 metres plus MW/LW.
- Ebonite panel, mahogany case.
- Price £21 (it is not clear if this included batteries or speaker).
The circuit followed closely the Wireless World Everyman Four.
- Price in first year of sale
- 21.00 GB £
- Source of data
- Radio! Radio!
- Mentioned in
- -- Original prospect or advert (Eddystone User Group, Pre-War Sets pdf)
- Author
- Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.
- Other Models
-
Here you find 255 models, 125 with images and 46 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Eddystone (Brand), Stratton and Co., Ltd., Eddystone Radio Ltd.; Birmingham
Forum contributions about this model: Eddystone Brand,: Scientific Four
Threads: 1 | Posts: 3
In Informations about the Scientific Four, Graeme Wormald G3GGL writes in EUGN 76:
| H.F.Valve | Det.Valve | 1st L.F. Valve | 2nd L.F.Valve | |
| 2V filaments | P.M.1H.F. | P.M.1A | P.M.1L.F. | P.M.252 |
| 4V filaments | P.M.3 | P.M.3A | P.M.3 | P.M.254 |
| 6V filaments (recommended) |
P.M.5x | P.M.5B | P.M.5X | Stentor 6 |
Martin Bösch, 06.Jan.07