• Country
• United States of America (USA)

• Manufacturer / Brand
• Monitoradio; Indianapolis (IN)

• Year
• 1955 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 330253

• • alternative name: Radio Apparatus Corp.; Indianap.

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

• Number of Tubes
• 6

• Valves / Tubes
• 12AT7 6BJ6 6BJ6 19T8 35C5 35W4

• Main principle
• Superheterodyne (common); ZF/IF 10700 kHz

• Wave bands
• FM Broadcast Band Only

• Power type and voltage
• AC/DC-set / 117V = 110 -120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Policalarm PR-31A - Monitoradio; Indianapolis IN

• Shape
• Tablemodel, with any shape - general.

• Notes

• Policalarm model PR-31A is an AC-DC operated FM superheterodyne receiver.

   

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 295 Folder 10 dated 11-55)

• Author
• Model page created by Dirk Taekels. See "Data change" for further contributors.

• Other Models

• Here you find 27 models, 22 with images and 24 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Monitoradio; Indianapolis (IN)