KTR-1661

Koyo Denki Co. Ltd.; Kodaira, Tokyo

Data
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  • Year
  • 1965 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 105089

 Technical Specifications

  • Number of Transistors
  • 16
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Line / Batteries (any type) / 240 / 4 × 1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Power out
  • 0.5 W (0.7 W max.)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: KTR-1661 - Koyo Denki Co. Ltd.; Kodaira,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 314 x 262 x 148 mm / 12.4 x 10.3 x 5.8 inch
  • Notes

  • Wooden case with carry handle on top; Ranges: 150-350kHz, 540-1600kHz, 1.6-4MHz, 3.7-9MHz, 9-22MHz, 88-108MHz, 108-136MHz, 148-174MHz; fine tuning (SW and "Police" VHF band); antenna input; driver- and output-transformer; dial light.

    "Police" band covers Amateur 2m and Marine VHF in Europe. It did receive lowest VHF Band III TV sound before ASO.

    3.5mm Earphone jack socket.

    Separate FM and AM IF amplifiers.

    See also the similar models CTR KTR-1661 and CTR TAF80.

 Collections | Museums | Literature

Collections

The model is part of the collections of the following members.

 Forum

Forum contributions about this model: Koyo Denki Co. Ltd.;: KTR-1661

Threads: 1 | Posts: 2

The aerial is the kind with a knuckle-hinge at the base.
7 sections
About 13.5cm collapsed, measured to hinge screw.
About 71.5 cm above top of radio straight, or about 69 cm if angled, on long portion.

Obviously about optimal for 100 MHz, as any 1/4 wave aerial is electrically a little longer than physical length.

Really any aerial that fits inside case when collapsed should be fine. The inside of the case is about 22cm and has a fixed bottom section, with wire to base, so total length is about 96cm straight up, but electrical length shorter due to wire from base to PCB.

Michael Watterson, 31.Dec.23

Weitere Posts (2) zu diesem Thema.