• Country
• United States of America (USA)

• Manufacturer / Brand
• J.M.P. Mfg. Co.

• Year
• 1932 ?

• Category
• Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter

• Radiomuseum.org ID
• 45154

• Number of Tubes
• 1

• Valves / Tubes
• 27

• Main principle
• RF Converter/Adapter (not voltage converter)

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• AC/DC-set

• from Radiomuseum.org
• Model: Adapter S - J.M.P. Mfg. Co.

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes
• Adapter

• Price in first year of sale
• 12.00 $

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Other Models

• Here you find 4 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from J.M.P. Mfg. Co.