• Country
• United States of America (USA)

• Manufacturer / Brand
• Beckman Instruments, Shasta, Shockley; Richmond (CA)

• Year
• 1950 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 222549

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

• Wave bands
• - without

• Power type and voltage
• Batteries / addl. power jack / 4.5-45, resistor for higher voltage Volt

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: Wheatstone Bridge RN-3 / KS-14959 - Beckman Instruments, Shasta,

• Notes
• Have created a modified schematic. Perfect working condition. Case well used.

• Author
• Model page created by Gerry Bertrand. See "Data change" for further contributors.

• Other Models

• Here you find 51 models, 43 with images and 18 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Beckman Instruments, Shasta, Shockley; Richmond (CA)