Multi-Pattern Microphone 639B
Altec Lansing Corp.; Oklahoma City (OK)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Altec Lansing Corp.; Oklahoma City (OK)
- Year
- 1947 ?
- Category
- Microphone or Pick-up element
- Radiomuseum.org ID
- 134224
Click on the schematic thumbnail to request the schematic as a free document.
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - For headphones or amp.
- Material
- Metal case
- from Radiomuseum.org
- Model: Multi-Pattern Microphone 639B - Altec Lansing Corp.; Oklahoma
- Dimensions (WHD)
- 7.5 x 4.5 x 3.5 inch / 191 x 114 x 89 mm
- Notes
- Altec Lansing 639B
Multipattern Microphone with 6 switch-selectable directional characteristics, by incorporating both a dynamic and a ribbon element. First produced by Western Electric in 1939.
- Net weight (2.2 lb = 1 kg)
- 1.5 kg / 3 lb 4.9 oz (3.304 lb)
- Source of data
- -- Collector info (Sammler)
- Mentioned in
- -- Original-techn. papers.
- Author
- Model page created by Gottfried Silberhorn. See "Data change" for further contributors.
- Other Models
-
Here you find 104 models, 102 with images and 38 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Altec Lansing Corp.; Oklahoma City (OK)