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TRW-621; Sony Corporation; (ID = 646961) Radio
TRW-621; Sony Corporation; (ID = 646962) Radio
TRW-621; Sony Corporation; (ID = 1684120) Radio
TRW-621; Sony Corporation; (ID = 1604749) Radio TRW-621; Sony Corporation; (ID = 262969) Radio
TRW-621; Sony Corporation; (ID = 629599) Radio TRW-621; Sony Corporation; (ID = 839110) Radio
TRW-621; Sony Corporation; (ID = 839111) Radio TRW-621; Sony Corporation; (ID = 1213009) Radio
TRW-621; Sony Corporation; (ID = 1213010) Radio TRW-621; Sony Corporation; (ID = 1213011) Radio
TRW-621; Sony Corporation; (ID = 1213012) Radio TRW-621; Sony Corporation; (ID = 1521735) Radio
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TRW-621; Sony Corporation; (ID = 1604749) Radio
Sony Corporation;: TRW-621 [Radio] ID = 1604749 933x1277
Select picture or schematic to display from thumbnails on the right and click for download.
For model TRW-621, Sony Corporation; Tokyo:
By Courtesy Of Ebay-User: dts-bay
Country:  Japan
Manufacturer / Brand:  Sony Corporation; Tokyo
Year: 1960 Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 6: 2SC73 2SC76 2SC76 2SD64 2SD65 2SD65
Main principle Superheterodyne (common); ZF/IF 455 kHz
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Dry Batteries / 9 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 cm = 2.4 inch
Power out
from Model: TRW-621 - Sony Corporation; Tokyo
Material Plastics (no bakelite or catalin)
Shape Very small Portable or Pocket-Set (Handheld) < 8 inch.
Dimensions (WHD) 65 x 112 x 30 mm / 2.6 x 4.4 x 1.2 inch

With clock. It features a beautiful built in Seiko watch with alarm! Author Enrico Tedeschi suggests in his book 'The Magic of Sony' that the TRW-621 was the first radio with a built in watch. It was probably the first transistor radio with this feature. Sony released another watch radio in 1961/62, the TRW-625 was smaller than the TRW-621 and the watch was built into the center of the speaker grill! In 1962 Matsushita released the National T-98 'Portalarm' which is very similar in appearance to the Sony TRW-621 it also uses a Seiko watch. TRW-621 also features a recessed stand for lounging, a gold metallic face and a textured metal speaker grill. The front half of the cabinet is colored ivory and the back is coral colored. This radio can also be found colored black with a coral back and ivory with a grey back.

See also Alpha Seven Transistor.

Net weight (2.2 lb = 1 kg) 0.2 kg / 0 lb 7 oz (0.441 lb)
Mentioned in -- Collector info (Sammler)
Literature/Schematics (1) Photofact Folder, Howard W. SAMS (Set 566 Folder 14 2-1962)
Literature/Schematics (2) - - Data from my own collection

Model page created by Peter Hoddow. See "Data change" for further contributors.

All listed radios etc. from Sony Corporation; Tokyo
Here you find 3557 models, 3410 with images and 753 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.