- Country
- United States of America (USA)
- Manufacturer / Brand
- Apex Electric, Pool; Chicago; US Radio & Television Corp.; Marion; (US Radio&Refrigeration)
- Year
- 1930
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 63844
-
- alternative name: Apex Electric Mfg. || Case Electric || Melrose || United States Radio & T
- Number of Tubes
- 8
- Main principle
- TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935
- Tuned circuits
- 4 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Alternating Current supply (AC) / probably 25 Hz: 110 Volt
- Loudspeaker
- Ø 12 inch = 30.5 cm
- Material
- Wooden case
- from Radiomuseum.org
- Model: 31-DX - Apex Electric, Pool; Chicago;
- Shape
- Console, Lowboy (legs < 50 %).
- Notes
-
One dial (primary tuning control knob)
For the schematic see the export model Apex 31-CP Radio-Grammo-Combination for Switzerland (Kaiser & Co. AG Bern)
- Price in first year of sale
- 189.00 $
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Other Models
-
Here you find 218 models, 88 with images and 122 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Apex Electric, Pool; Chicago; US Radio & Television Corp.; Marion; (US Radio&Refrigeration)