• Country
• United States of America (USA)

• Manufacturer / Brand
• Leeds & Northrup; Philadelphia

• Year
• 1910 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 334433

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Reflecting Galvanometer - Lichtmarken Galvanometer - Leeds & Northrup; Philadelphia

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 100 x 110 x 225 mm / 3.9 x 4.3 x 8.9 inch

• Notes

• Mirror based or reflecting galvanometer, Ω-Meter / Isolation meter.

  The scale is intentionally installed upside down because otherwise the mirror prism would deliver an inverted image to the eye.

  Die Skala ist mit Absicht auf dem Kopf eingebaut, weil das Spiegelprisma sonst ein verkehrtes Bild ans Auge liefert.

  Abmessungen geschlossen: Grundfläche: 100 x 255 mm, Höhe: 110mm
  Abmessungen geöffnet: Grundfläche: 100 x 454 mm, Höhe bis Oberkante Okular: 187 mm

• Author
• Model page created by Heribert Jung. See "Data change" for further contributors.

• Other Models

• Here you find 15 models, 14 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Leeds & Northrup; Philadelphia