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32527_EXTRA_LARGE.jpg
32526_EXTRA_LARGE.jpg
Silvertown // ΜΤ-017736 // 1925

Wireless Telegraphy Variable Resistors Device

DImensions: 13,5 x 21,5 x 12 εκ. Location: England Material: metal,bakelite,wood

Wooden variable resistors box used in wireless telegraphy , made in the UK. The resistor base is made of bakelite, the switches are metal - bronze and the handles are made of bakelite. Ohmic resistance categories from 40 up to 360 and from 100 until 4000.

In Copyright

In copyright