Combination Set No. MR-3
DeForest Radio Telephone & Telegraph Co. (De Forest); New York
- Country
- United States of America (USA)
- Manufacturer / Brand
- DeForest Radio Telephone & Telegraph Co. (De Forest); New York
- Year
- 1921
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 195833
-
- alternative name: Lee De Forest Mfg.
DeForest catalog "E"
- Number of Tubes
- 3
- Main principle
- TRF (Tuned-Radio-Frequency but use of regeneration unknown); 2 AF stage(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Wooden case
- from Radiomuseum.org
- Model: Combination Set No. MR-3 - DeForest Radio Telephone &
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
- The DeForest Combination Set No. MR-3 consisted of the following panels, a MP-100 Audion Control, a MT-100 Tuner and two MP-200 One-Step Amplifiers in an oak cabinet. The MT-100 tuner had a wavelength range of 180-400 meters.
- Net weight (2.2 lb = 1 kg)
- 34 lb (34 lb 0 oz) / 15.436 kg
- Price in first year of sale
- 107.00 $
- Literature/Schematics (1)
- DeForest "Interpanel" Sets Catalogue "E"
- Author
- Model page created by Alan Larsen. See "Data change" for further contributors.
- 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