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SONY MODEL 2R-28 AM RADIO（白）です。 下記はネット調べです。 そのまま掲載しております。 Country Japan Manufacturer / Brand Sony Corporation; Tokyo Year 1968 Category Broadcast Receiver - or past WW2 Tuner Main principle Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s) Tuned circuits 5 AM circuit(s) Wave bands Broadcast only (MW). Power type and voltage Dry Batteries / AA: 2 x 1.5 Volt Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) Power out 0.2 W (unknown quality) Material Plastics (no bakelite or catalin) from Radiomuseum.org Model: 2 R-28 - Sony Corporation; Tokyo Shape Very small Portable or Pocket-Set (Handheld) < 8 inch. Dimensions (WHD) 61 x 94 x 31 mm / 2.4 x 3.7 x 1.2 inch Notes 6 Transistor and 1 diode superheterodyne ... Frequency Range MW 530 - 1605 kc (5660 187 m) Net weight (2.2 lb = 1 kg) 0.2 kg / 0 lb 7 oz (0.441 lb) |