9-10-11 k/c Whistle Filter Unit
Lowther Manufacturing Co; Kent
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Lowther Manufacturing Co; Kent
- Year
- 1936–1950 ??
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 340660
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Material
- Wooden case
- from Radiomuseum.org
- Model: 9-10-11 k/c Whistle Filter Unit - Lowther Manufacturing Co; Kent
- Shape
- Tablemodel without push buttons, Mantel/Midget/Compact up to 14
- Notes
-
9-10-11 K/c Whistle Filter Unit.
This whistle filter is designed to be used in conjunction with the Voigt speaker unit, its object being to remove the 9 k/c whistle superimposed on your program by the neighbouring stations, chiefly after dark.
This band of frequencies is essential if the best is to be heard, and so all filters are fitted with a switch to put them out of the circuit when circumstances permit (throughout the daytime). It also acts as a very efficient "scratch filter" when a Piezo electric type of pick-up is used.
The filter is connected in the leads to the speech coil, no other alteration or adjustment being needed.
£2 10 0 ex-works. Without cover £2 2 0
- Price in first year of sale
- 2.50 GB £
- Mentioned in
- - - Manufacturers Literature (Lowther Voigt Radio, Season 1936-37, Page 19.)
- Author
- Model page created by Gary Cowans. See "Data change" for further contributors.
- Other Models
-
Here you find 56 models, 51 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Lowther Manufacturing Co; Kent