- Country
- United States of America (USA)
- Manufacturer / Brand
- Sentinel Radio Corp., Evanston, Illinois
- Year
- 1939/1940
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 57413
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 4
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Storage and/or dry batteries / 90V/1.5 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
- Material
- Leather / canvas / plastic - over other material
- from Radiomuseum.org
- Model: 178BL - Sentinel Radio Corp., Evanston
- Shape
- Portable set > 8 inch (also usable without mains)
- Dimensions (WHD)
- 345 x 225 x 205 mm / 13.6 x 8.9 x 8.1 inch
- Notes
-
Battery's 45Vx2=+B 1.5V =A (filament). Tuning range 540 to 1650 k.c.
- External source of data
- Ernst Erb
- Source of data
- Collector's Guide to Antique Radios 4. Edition
- Circuit diagram reference
- Rider's Perpetual, Volume 10 = 1939 and before
- Literature/Schematics (3)
- Shown for Season 1939/40 for 1940 in Sentinel Folder No. 120.
- Other Models
-
Here you find 705 models, 349 with images and 596 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Sentinel Radio Corp., Evanston, Illinois