Microphone 501
Kellogg Switchboard & Supply Co.; Chicago (IL)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Kellogg Switchboard & Supply Co.; Chicago (IL)
- Year
- 1925 ??
- Category
- Microphone or Pick-up element
- Radiomuseum.org ID
- 254218
-
- Brand: Wavemaster
Publicité, TSF pour Tous, Avril 1925
Publicité, TSF pour Tous, Avril 1925
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - For headphones or amp.
- Material
- Metal case
- from Radiomuseum.org
- Model: Microphone 501 - Kellogg Switchboard & Supply
- Shape
- Tablemodel, with any shape - general.
- Notes
-
Double-button type carbon microphone.
- Net weight (2.2 lb = 1 kg)
- 2.5 lb (2 lb 8 oz) / 1.135 kg
- Mentioned in
- La TSF pour TOUS - TSF et TV (Revue mensuelle) (No. 15, Avril 1925)
- Other Models
-
Here you find 66 models, 25 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Kellogg Switchboard & Supply Co.; Chicago (IL)