720A
Use red slider bar for more.
Shure; Chicago,: 720A [Microphone/PU] ID = 475114 335x700
Select picture or schematic to display from thumbnails on the right and click for download.
|
|
||||
| Year: 1938 ?? | Category: Microphone or Pick-up element |
| Wave bands | - without |
|---|---|
| Details | |
| Power type and voltage | No Power needed |
| Loudspeaker | |
| Power out | |
| from Radiomuseum.org | Model: 720A - Shure; Chicago, Evanston, |
| Material | Various materials |
| Notes | Crystal microphone. Uni-, bi- or non-directional avaiable through a selector switch. |
| Price in first year of sale | 39.00 $ |
| Mentioned in | The radio amateur's handbook 1938, cat. sec. p. 515 |
Model page created by Otto Frosinn. See "Data change" for further contributors.
All listed radios etc. from Shure; Chicago, Evanston, Niles (IL)
Here you find 122 models, 116 with images and 44 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
