- Country
- United States of America (USA)
- Manufacturer / Brand
- Gulbransen Co.; Chicago
- Year
- 1933 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 43771
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- Superhet with RF-stage; ZF/IF 175 kHz
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Alternating Current supply (AC)
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- from Radiomuseum.org
- Model: 872 - Gulbransen Co.; Chicago
- Notes
- Different power transformers are used for 110 V (25 cycle), 110 V (60 cycle) or 110, 220 V (40-60 cycle) mains supply.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 5 = ca. 1934 and before
- Other Models
-
Here you find 64 models, 10 with images and 31 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Gulbransen Co.; Chicago