• Country
• Japan

• Manufacturer / Brand
• Kenwood, Trio-Kenwood Inc.; Komagane

• Year
• 1981 ?

• Category
• Amateur TRX: Transmitter/Receiver (and Transceiver)

• Radiomuseum.org ID
• 89443

• • alternative name: Trio Corp.
  • Brand: Jennen

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superhet, double/triple conversion; ZF/IF 10700/455 kHz

• Wave bands
• VHF incl. FM and/or UHF (see notes for details)

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 8,4 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Power out
• 0.4 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR-2500 - Kenwood, Trio-Kenwood Inc.;

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

• Dimensions (WHD)
• 66 x 168 x 40 mm / 2.6 x 6.6 x 1.6 inch

• Notes

• Kenwood Handheld-FM-Transceiver TR-2500.
  Range from 144 to 146 MHz in 5-kHz-steps (146-148 MHz USA); 10 memories. 
  P_out: 2,5 W (High), 0.3 approx. (Low).
  Receiver sensitivity: Better than 1 µV for 12 dB SINAD.
  This device, in addition to the Ni-Cd battery pack, also uses a lithium battery (BR-2325) for memory maintenance.

• Net weight (2.2 lb = 1 kg)
• 0.5 kg / 1 lb 1.6 oz (1.101 lb)

• Price in first year of sale
• 810.00 DM

• Mentioned in
• RICOFUNK-Katalog 1983

• Literature/Schematics (1)
• -- Original prospect or advert (“Radio Rivista” official organ of "ARI Amat. Radio Assoc." of Italy, number 7, July 1982.)

• Author
• Model page created by Iven Müller. See "Data change" for further contributors.

• Other Models

• Here you find 886 models, 820 with images and 250 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kenwood, Trio-Kenwood Inc.; Komagane