Miniature Condenser Microphone 21B
Altec Lansing Corp.; Oklahoma City (OK)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Altec Lansing Corp.; Oklahoma City (OK)
- Year
- 1950 ??
- Category
- Microphone or Pick-up element
- Radiomuseum.org ID
- 243381
- Number of Tubes
- 1
- Valves / Tubes
- 6AU6
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Powered by external power supply or a main unit.
- Loudspeaker
- - For headphones or amp.
- Material
- Metal case
- from Radiomuseum.org
- Model: Miniature Condenser Microphone 21B - Altec Lansing Corp.; Oklahoma
- Shape
- Miscellaneous shapes - described under notes.
- Dimensions (WHD)
- 30 x 30 x 220 mm / 1.2 x 1.2 x 8.7 inch
- Notes
-
Altec Miniature Condenser Microphone 21B, "Coke Bottle" omnidirectional microphone, part of the Altec M11 Microphone Systems.
Needs Altec power supply P518A or P519A.
- Net weight (2.2 lb = 1 kg)
- 0.166 kg / 0 lb 5.9 oz (0.366 lb)
- Author
- Model page created by Gottfried Silberhorn. See "Data change" for further contributors.
- Other Models
-
Here you find 100 models, 98 with images and 34 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Altec Lansing Corp.; Oklahoma City (OK)
Collections
The model Miniature Condenser Microphone is part of the collections of the following members.