- Country
- United States of America (USA)
- Manufacturer / Brand
- Sparks-Withington Co., (Sparton); Jackson, Michigan
- Year
- 1934/1935
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 226252
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- Superhet with RF-stage; ZF/IF 345 kHz; 2 AF stage(s)
- Tuned circuits
- 9 AM circuit(s)
- Wave bands
- Broadcast and Short Wave (SW).
- Power type and voltage
- Storage and/or dry batteries / -9 & -3 & 2 & 67.5 & 135 Volt
- Loudspeaker
- Magnetic loudspeaker (reed) generic.
- Material
- Wooden case
- from Radiomuseum.org
- Model: Sparton 775 - Sparks-Withington Co., Sparton
- Notes
-
The model Sparton 775 is a "Country Home Receiver" = Farm Radio. Push-pull audio amplifier. Technically it should be the same as model 70. See the article here about season 1934/35.
- External source of data
- Sparks list "Quantity and Types of Tubes".
- Circuit diagram reference
- Rider's Perpetual, Volume 6 = 1935 and before
- Mentioned in
- Rider's 6-3
- Author
- Model page created by Ernst Erb. See "Data change" for further contributors.
- 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