Lowther Driver Unit PM7
Lowther Manufacturing Co; Kent
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Lowther Manufacturing Co; Kent
- Year
- 1966
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 340860
Photo from Wikimedia Commons
Fron Circa 1972 Catalogue.
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Material
- Special material, described in the notes.
- from Radiomuseum.org
- Model: Lowther Driver Unit PM7 - Lowther Manufacturing Co; Kent
- Shape
- Chassis only or for «building in»
- Notes
-
Lowther Driver Unit, PM7
The Lowther PM7 was designed as an improved version of the PM6, with a stronger magnet allowing higher frequencies to be reproduced.
It is claimed to give an improved performance from the Acousta and similar horn-loading enclosures.
Efficiency is increased and the new gap flux is 19,650 gauss.Specifications:
- Flux density: 19,650 gauss
- Total flux: 250,000 Maxwells
- Impedance: 15ohms
- Frequency range: 20Hz - 20,000Hz
- Power handling: 6 watts
- Net weight (2.2 lb = 1 kg)
- 4 kg / 8 lb 13 oz (8.811 lb)
- Price in first year of sale
- 28.00 GB £
- Mentioned in
- Wireless World (The), London (WW, 79) (Apr 1966, Page 118.)
- 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