- Country
- United States of America (USA)
- Manufacturer / Brand
- Sparks-Withington Co., (Sparton); Jackson, Michigan
- Year
- 1935
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 58918
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 5
- Main principle
- Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast and Short Wave (SW).
- Power type and voltage
- Storage and/or dry batteries / 3; 3 x 45 Volt
- Loudspeaker
- Magnetic loudspeaker (reed) generic.
- Material
- Wooden case
- from Radiomuseum.org
- Model: Sparton 81A - Sparks-Withington Co., Sparton
- Notes
- Country Home Receiver = Farm Radio;
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 7 = 1936 and before
- Mentioned in
- Radio-Craft, Apr.1935, p.614
- Other Models
-
Here you find 817 models, 365 with images and 754 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Sparks-Withington Co., (Sparton); Jackson, Michigan