- Country
- United States of America (USA)
- Manufacturer / Brand
- DeForest Radio Telephone & Telegraph Co. (De Forest); New York
- Year
- 1922
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 37100
-
- alternative name: Lee De Forest Mfg.
Deforest Radio Equipment Catalog H page 13
- Number of Tubes
- 1
- Valves / Tubes
- UV200
- Main principle
- TRF without regeneration
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - For headphones or amp.
- Material
- Wooden case
- from Radiomuseum.org
- Model: MR4 - DeForest Radio Telephone &
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
- The De Forest Radio Telephone Combination Set MR-4 consisted of the MT-200 Tuner and the MP-100 Audion Control.
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Literature/Schematics (4)
- Deforest Radio Equipment Catalog H page 13
- Other Models
-
Here you find 158 models, 132 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from DeForest Radio Telephone & Telegraph Co. (De Forest); New York