• Country
• Japan

• Manufacturer / Brand
• Leader Electronics Corp.; Yokohama

• Year
• 1966

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 112287

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

• Number of Transistors
• 3

• Semiconductors
• 2SC185 2SC185 2SC185 SD82A STD633

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Dry Batteries / AA: 2 x 1.5 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: T-D Dip Meter LDM-811 - Leader Electronics Corp.;

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 70 x 170 x 50 mm / 2.8 x 6.7 x 2 inch

• Notes

• Tunneldipper; 3 MHz to 260 MHz with 6 coils; sensitivity ca. 20 mV.

  Ranges:

  • A = 3 - 7 MHz
  • B = 6 - 15 MHz
  • C = 12 - 30 MHz
  • D = 26 - 70 MHz
  • E = 70 - 135 MHz
  • F = 130 - 270 MHz

• Net weight (2.2 lb = 1 kg)
• 0.7 kg / 1 lb 8.7 oz (1.542 lb)

• Mentioned in
• Funkschau (1966 Heft 4 Seite 230 Advert)

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 130 models, 123 with images and 81 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Leader Electronics Corp.; Yokohama