• Country
• United States of America (USA)

• Manufacturer / Brand
• MILITARY U.S. (different makers for same model)

• Year
• 1945 ??

• Category
• Military Transceiver (TRX)

• Radiomuseum.org ID
• 251327

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

• Number of Tubes
• 16

• Valves / Tubes
• 6J6 6J6 6AG5 6AG5 6AG5 6AG5 6AG5 6AG5 6AG5 6AG5 2D21 6J6 6J6 2D21 6J6 6AG5 0C3

• Main principle
• Superheterodyne (common); ZF/IF 30000 kHz

• Power type and voltage
• Direct Current supply (DC) / 28 Volt

• Material
• Metal case

• from Radiomuseum.org
• Model: Radio Receiver and Transmitter APS-13 - MILITARY U.S. different makers

• Notes

• The APS-13 is a warning radar transmitter/receiver used by the military.  The operating frequency is 420 MHz using an IF of 30 MHz.  Has built-in power dynamotor that generates the required internal voltages from the standard aircraft 28 V DC power.

• Mentioned in
• The Surplus Handbook - Receivers and Transmitters (page 3-4)

• Literature/Schematics (1)
• -- Original-techn. papers. (Radiosurplus Ieri e Oggi, Umberto Bianchi, Italy - 1982)

• Author
• Model page created by Alessandro De Poi. See "Data change" for further contributors.

• Other Models

• Here you find 399 models, 351 with images and 210 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from MILITARY U.S. (different makers for same model)