• Country
• Worldwide

• Manufacturer / Brand
• Schlumberger; (international)

• Year
• 1972

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 201143

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• - without

• Power type and voltage
• Dry Batteries

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Digital Multimeter 4440 - Schlumberger; international

• Shape
• Tablemodel with Push Buttons.

• Notes
• Das in MOS-MSI-Technik aufgebaute Multimeter (17 Meßbereiche) arbeitet nach dem Prinzip der Dual-Slope-Integration und zeigt 4-stellig bis 1999 an.

• Author
• Model page created by Museum Roggenhofer. See "Data change" for further contributors.

• Other Models

• Here you find 35 models, 33 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Schlumberger; (international)