Date1910 - 1920sDimensionsHeight: 170 Length: 440 Width: 15 Notes: Dimensions noted as: 440mm l x 170mm h x 150mm w
Wood with brass fittingsAccession Number13.066Access AdviceThis record may not have been reviewed, and information may be inaccurate or incomplete. We are digitising our collections, adding images and improving metadata all the time.
More Information
Description
Loose coupler/receiving transformer. Also known as a Receiving Transformer, loose couplers were used extensively in receivers built during the 'teens'' (1910 - 1929). The coupler consists of 2 coils, a primary and a secondary. The primary coil is stationary and is usually provided with a slider for varying the conductance by single turns. The secondary coil slides in and out of the primary to vary the coupling, and is designed with several switch points in order to change the inductance. Timber shell and base. Appears to be home-made.
