• Country
• Japan

• Manufacturer / Brand
• KENPRO Industrial Co.Ltd.; Tokyo

• Year
• 1980 ??

• Category
• Amateur Equipment (Other, but not Key)

• Radiomuseum.org ID
• 304893

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

• Number of Transistors
• 2

• Semiconductors
• 2SC732 2SC372 1S1588 02Z8.2A

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 117; 220 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Antenna Elevation Rotator KR-500 - KENPRO Industrial Co.Ltd.;

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 110 x 157 x 180 mm / 4.3 x 6.2 x 7.1 inch

• Notes

• The KR-500 is a medium power 180 degrees elevation antenna rotator that can handle a 50 kg antenna load provided that it is balanced or counterbalanced. Die cast aluminum housing.

  24 volts AC motor.
  Time for 180 degrees rotation 61 sec/60 Hz, 74 sec/50 Hz.
  Accuracy +-3%.
  Mechanical 180 degrees pin stop.
  Rotation torque 400 kg-cm (350 lb-in).
  Stationary brake torque 2000 kg-cm (1750 lb-in).
  Mast diameter 38 - 63 mm (1.5 - 2.5 in).
  Boom diameter 32 - 41 mm (1.25 - 1.625 in).
  Cable 6-conductor #22 AWG or larger.

  Weights:
  Controller 1.9 kg (4.2 lb).
  Rotator 3.3 kg (7.3 lb).

• Net weight (2.2 lb = 1 kg)
• 1.9 kg / 4 lb 3 oz (4.185 lb)

• Mentioned in
• Orbit magazine dated November/December 1980

• Literature/Schematics (1)
• -- Original-techn. papers. (KR-500 Instruction Manual)

• Author
• Model page created by Bruce Taylor. See "Data change" for further contributors.

• Other Models

• Here you find 5 models, 5 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from KENPRO Industrial Co.Ltd.; Tokyo