- Country
- United States of America (USA)
- Manufacturer / Brand
- Sparks-Withington Co., (Sparton); Jackson, Michigan
- Year
- 1933–1935
- Category
- Car Radio, perhaps also + sound player/recorder
- Radiomuseum.org ID
- 58589
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 172.5 kHz; 2 AF stage(s)
- Tuned circuits
- 6 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
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Metal case
- from Radiomuseum.org
- Model: Sparton 33 - Sparks-Withington Co., Sparton
- Shape
- Chassis only or for «building in»
- Notes
-
Vibrator for +B included in sep cabinet. See our article about the right radio season. There are two later versions, 33-A and 33-B - but also this version 33 only with other tubes!
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 4 = ca. 1934 and before
- Mentioned in
- Rider's 4-7, 4-8
- Literature/Schematics (1)
- -- Collector info (Sammler)
- Literature/Schematics (2)
- Sparton Radio Service Manual (Sparton Manual 1, Bulletin 50-1, 2 Bulletin 43-3, 4)
- Other Models
-
Here you find 773 models, 361 with images and 720 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Sparks-Withington Co., (Sparton); Jackson, Michigan