Updated Jan 2010
The Royal Naval Electrical Branch issued to every new recruit a BR 157. This Book of Reference became a legend within the Electrical Branch
Some images from it’s pages are reproduced here
Admiralty Approval
Avo 8
Index
Controller for a 3 ton winch
Ward Leonard Set
Cruiser Ring Main
Gun Firing circuit
Door Switch
Magslip 3 element chain
Branch Breaker
Supply Breaker
Bells & Buzzers 1
Bells & Buzzers 2
