- Country
- United States of America (USA)
- Manufacturer / Brand
- Wurlitzer Co., The Rudolph; North Tonawanda, NY
- Year
- 1933 ?
- Category
- Car Radio, perhaps also + sound player/recorder
- Radiomuseum.org ID
- 67053
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 5
- Main principle
- Superheterodyne (common); ZF/IF 485 kHz
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- from Radiomuseum.org
- Model: U500 - Wurlitzer Co., The Rudolph;
- Notes
- Autodapter to transform 6 V DC to 110 V AC using a vibrator circuit. Tubes were on the market since 1933.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 4 = ca. 1934 and before
- Other Models
-
Here you find 236 models, 148 with images and 85 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Wurlitzer Co., The Rudolph; North Tonawanda, NY