• 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
• 79986

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 11

• Valves / Tubes
• 78 6A7 76 78 VG-1 78 85 76 42 42 5Z3

• Main principle
• Superhet with RF-stage; ZF/IF 456 kHz; 2 AF stage(s)

• Tuned circuits
• 9 AM circuit(s)

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• 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 135 "Embassy" - Sparks-Withington Co., Sparton

• Shape
• Console with any shape - in general

• Notes

• The Sparton model 135 receives most probably the following bands: Broadcast 550 - 1500 kHz and the SW bands 1.4 - 3.4 MHz, 3.3 - 8 MHz and 7.5 - 19/20 MHz. The VisoGlo tuning indicator VG-1 is extremely rare, even in the literature it is nearly not noticed. The models 104, 105-X and 105-XS use the same tube line up.
  See the article here about season 1934/35.

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Literature/Schematics (1)
• Sparton Radio Service Manual (Manual 2, Bulletin 27 pgs. 3-5 & 28 pgs. 1&2)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• 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