- Country
- United States of America (USA)
- Manufacturer / Brand
- Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
- Year
- 1930
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 38072
By courtesy of "antiqueradios.com"!
Click on the schematic thumbnail to request the schematic as a free document.
- 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) / 95-115; 115-125 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- from Radiomuseum.org
- Model: 224-B - Electrical Research
- Notes
- Phono input; push-pull af output stage.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)
- Other Models
-
Here you find 134 models, 47 with images and 61 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Electrical Research Laboratories Inc. (Erla); Chicago, Illinois