Object Category
Radio frequency transformer
Description
Radio frequency transformer with primary winding and secondary winding coming out of separate terminals in mahogony box. Wooden box with various copper electrodes containing large coil of copper wire. Handwritten on lid (inside) Inductance of primary alone = 20.2 mhys, Inductance of primary plus 1st section of extra coil = 22.7, Inductance of primary & 2nd section = 32.7, & 3rd = 43.9 & 4th = 61.7. Sections of extra coil are counted from left hand terminal. Also, stamped on lid, 1744 Patent.
Creator
Marconi's Wireless Telegraph Co Ltd
Material
Dimensions
length: 130 mm
width: 92 mm
height: 136 mm
Collection
Electronic and Electrical Engineering
Accession Number
LDUSC-EE-126
Alternative Number
125
Administration Name
UCL Science and Engineering Collections
