• Country
• Japan

• Manufacturer / Brand
• Rotel, The, Co., Ltd.; Tokyo

• Year
• 1973–1978

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 110072

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

• Number of Transistors
• 12

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Details
• Hi-Fi equipment

• Power type and voltage
• Alternating Current supply (AC) / 120; 240 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: AM/FM Stereo Tuner RT-222 - Rotel, The, Co., Ltd.; Tokyo

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 13 x 4 x 6.5 inch / 330 x 102 x 165 mm

• Notes

• An AM/FM stereo hi-fi tuner covering MW and FM. With a Tuning meter, terminals for AM and FM (300Ω and 75Ω) antennae and phono sockets for Line Output.

  Specification
  FM Section
  Sensitivity (IHF)	4 µV
  Frequency Range	88 - 108 MHz
  Harmonic Distortion	0.5%
  Signal to Noise Ratio	63 db
  Capture Ratio	5 db
  Selectivity	20dB
  Stereo Separation	35 db at 1 kHz
  Image Rejection	40dB
  IF Rejection	60 db
  Spurious Response Rejection	60 db
  Antenna Impedance	300Ω Balanced 75Ω Unbalanced
  AM Section
  Sensitivity (IHF)	250µV
  Frequency Range	535 - 1605 kHz
  Image Rejection	50 db at 1 MHz
  IF Rejection	40 db at 1 MHz
  Signal to Noise Ratio	50dB
  Selectivity	30dB

  Semiconductors :  12 Transistors, 16 Diodes.

• Net weight (2.2 lb = 1 kg)
• 3 kg / 6 lb 9.7 oz (6.608 lb)

• Price in first year of sale
• 140.00 $

• Literature/Schematics (1)
• - - Manufacturers Literature (Owner's Manual RT-222)

• Author
• Model page created by Howard Craven. See "Data change" for further contributors.

• Other Models

• Here you find 338 models, 327 with images and 32 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Rotel, The, Co., Ltd.; Tokyo