- Country
- United States of America (USA)
- Manufacturer / Brand
- Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
- Year
- 1947 ??
- Category
- Car Radio, perhaps also + sound player/recorder
- Radiomuseum.org ID
- 48909
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Main principle
- Superhet with RF-stage; ZF/IF 262 kHz
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
- Loudspeaker
- - This model requires external speaker(s).
- Power out
- 4 W (unknown quality)
- from Radiomuseum.org
- Model: 550-A - Motorola Inc. ex Galvin Mfg.Co
- Notes
- Vibrator for +B
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 15 = 1947 and before
- Other Models
-
Here you find 4509 models, 2955 with images and 4003 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)