- 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
- 58849
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Main principle
- Superheterodyne (common); ZF/IF 345 kHz; 2 AF stage(s)
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast and Short Wave (SW).
- Power type and voltage
- Alternating Current supply (AC) / 115 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: Sparton 691 - Sparks-Withington Co., Sparton
- Shape
- Console with any shape - in general
- Notes
-
Model 691 is a 6-tube superheterodyne for broadcast reception 540 to 1600 kHz including police calls and short wave, most probably from 19 to 55 meters. Technically similar or the same as model 67 but with an other cabinet.
See the article here about season 1934/35.
- External source of data
- Ernst Erb
- Source of data
- The Radio Collector's Directory and Price Guide 1921 - 1965
- Circuit diagram reference
- Rider's Perpetual, Volume 5 = ca. 1934 and before
- Mentioned in
- Rider's 5-10, 5-11, 5-12
- Other Models
-
Here you find 818 models, 367 with images and 764 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Sparks-Withington Co., (Sparton); Jackson, Michigan