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Century-21D ; Seiki Electronics (ID = 988891) Amateur-R
Century-21D ; Seiki Electronics (ID = 988892) Amateur-R
Century-21D ; Seiki Electronics (ID = 988893) Amateur-R
Century-21D ; Seiki Electronics (ID = 997263) Amateur-R Century-21D ; Seiki Electronics (ID = 997264) Amateur-R
Century-21D ; Seiki Electronics (ID = 997265) Amateur-R
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Century-21D ; Seiki Electronics (ID = 997263) Amateur-R
Seiki Electronics: Century-21D [Amateur-R] ID = 997263 933x581
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For model Century-21D, Seiki Electronics Inc.
Country:  Japan
Manufacturer / Brand:  Seiki Electronics Inc.
Year: 1980 ? Category: Amateur-Receiver (amateur bands, may include broadcast bands)
Semiconductors (the count is only for transistors) Semiconductors present.
Main principle Wadley-Loop principle (including dual superhet)
Wave bands Broadcast plus more than 2 Short Wave bands.
Power type and voltage Alternating Current supply (AC) / 110; 117; 220 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out 2 W (unknown quality)
from Model: Century-21D - Seiki Electronics Inc.
Material Plastics (no bakelite or catalin)
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 325 x 140 x 230 mm / 12.8 x 5.5 x 9.1 inch
Notes Century-21D: Communications receiver covering 0,5 - 30 MHz with Wadley Loop Circuitry and frequency counter, AM, USB / LSB.
Successor of the quite popular analog readout model Century-21 and very similar if not identical to Lowe SRX-30D.
Net weight (2.2 lb = 1 kg) 5 kg / 11 lb 0.2 oz (11.013 lb)
Source of data -- Original-techn. papers.

Model page created by Martin Bösch. See "Data change" for further contributors.

All listed radios etc. from Seiki Electronics Inc.
Here you find 4 models, 4 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.