Setting Up and Complete Testing of D.C. Track Circuits (A.C. Immune) on Alternating Current Electrified Lines
- Made:
- 1960
- maker:
- British Transport Films and British Railways
Lecture notes for a filmstrip in 11 frames, monochrome, made by British Transport Films in association with the Signal & Telecommunications Engineering Department of British Railways entitled 'Setting up and Complete Testing of D.C. Track Circuits (A.C. Immune) on Alternating Current Electrified Lines', c1960.
