• Country
• United States of America (USA)

• Manufacturer / Brand
• Radio Mfg. Engineers, Inc. (RME); Peoria, IL

• Year
• 1941 ??

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

• Radiomuseum.org ID
• 52549

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

• Number of Tubes
• 3

• Valves / Tubes
• 1852 6SJ7 6J5

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

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• 3 Loudspeakers

• Material
• Metal case

• from Radiomuseum.org
• Model: Band Expander DM-36A - Radio Mfg. Engineers, Inc. RME

• Shape
• Tablemodel, with any shape - general.

• Notes
• Frequency converter, converts the 28-30 and 56-60 MHz ham bands to 1550 kHz.
  Uses 6V heaters and 90 & 135V B+ voltages.

• Circuit diagram reference
• Rider's Perpetual, Volume 12 = ca. 1941 and before

• Author
• Model page created by Peter Rutishauser. See "Data change" for further contributors.

• Other Models

• Here you find 50 models, 26 with images and 33 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio Mfg. Engineers, Inc. (RME); Peoria, IL