- Country
- United States of America (USA)
- Manufacturer / Brand
- Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
- Year
- 1933 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 38119
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Main principle
- Superheterodyne (common); ZF/IF 465 kHz
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast and Short Wave (SW).
- Power type and voltage
- Dry Batteries / 3 & 135 & -22,5 Volt
- Loudspeaker
- Magnetic loudspeaker (reed) generic.
- from Radiomuseum.org
- Model: 7741 - Electrical Research
- Notes
- Push-pull af output stage; unknown ballast tube.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 5 = ca. 1934 and before
- Other Models
-
Here you find 133 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