- Country
- United States of America (USA)
- Manufacturer / Brand
- Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
- Year
- 1939–1941
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 48840
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 5
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Line / Batteries (any type) / 117 AC/DC / 90 & 1.5 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Material
- Leather / canvas / plastic - over other material
- from Radiomuseum.org
- Model: 51D - Motorola Inc. ex Galvin Mfg.Co
- Shape
- Portable set > 8 inch (also usable without mains)
- Dimensions (WHD)
- 9.75 x 10.75 x 7 inch / 248 x 273 x 178 mm
- Notes
-
Resistance line cord. Loop built in. Range 540 to 1720 kHz (kc). London Tan simulated rawhide case.
- Net weight (2.2 lb = 1 kg)
- 15 lb 0 oz (15 lb) / 6.810 kg
- External source of data
- Ernst Erb
- Source of data
- Collector's Guide to Antique Radios 4. Edition
- Circuit diagram reference
- Rider's Perpetual, Volume 14 = 1944 = before 1943
- Mentioned in
- A Flick of the Switch 1930-1950
- Literature/Schematics (3)
- Motorola Folder H-101A for 1940.
- Other Models
-
Here you find 4607 models, 2965 with images and 4107 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)