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Precision Receiving Transformer

Country:  United States of America (USA)
Manufacturer / Brand:  Sears, Roebuck & Co.; Chicago (IL)
Year: 1917 Category: Radio module pre 1926 (not a part, not a key)
Main principle Tuner pre 1926 (not a wave trap)
Wave bands Broadcast (MW) and Long Wave.
Power type and voltage No Power needed
Loudspeaker - - No sound reproduction output.
Power out
from Model: Precision Receiving Transformer - Sears, Roebuck & Co.; Chicago
Material Various materials
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 12 x 5.75 x 4 inch / 305 x 146 x 102 mm
Notes Sears, Roebuck and Company Precsion Receiving Transformer Capacity 1,500 Meters. The primary is of enameled copper wire and the secondary is of green silk covered wire.
Net weight (2.2 lb = 1 kg) 5 lb (5 lb 0 oz) / 2.270 kg
Price in first year of sale 8.00 $
Literature/Schematics (1) 1917 Sears, Roebuck and Co. Wireless Apparatus catalog page 53

Model page created by Alan Larsen. See "Data change" for further contributors.

All listed radios etc. from Sears, Roebuck & Co.; Chicago (IL)
Here you find 5339 models, 3107 with images and 3907 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.