Type SR-25 new 2 upper dials
Northwestern Radio Mfg. Co.; Portland, OR
- Country
- United States of America (USA)
- Manufacturer / Brand
- Northwestern Radio Mfg. Co.; Portland, OR
- Year
- 1923
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 49760
- Number of Tubes
- 5
- Main principle
- TRF without regeneration; 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: Type SR-25 [new 2 upper dials] - Northwestern Radio Mfg. Co.;
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Dimensions (WHD)
- 29 x 11.25 x 9 inch / 737 x 286 x 229 mm
- Notes
-
Introduced in the January 1923 Radio Waves magazine advertisement. Northwestern Radio Manufacturing Company Type SR-25 receiver Tuned, loose coupled circuits, 2 radio, detector and 2 audio.
- Price in first year of sale
- 150.00 $
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Literature/Schematics (4)
- March 1923 Radio Waves magazine advertisement rear cover
- Other Models
-
Here you find 17 models, 11 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Northwestern Radio Mfg. Co.; Portland, OR