The Type 12 frigate HMS Londonderry (1958). In the transmitting station cooling compartment between 28¼ and 30½ stations on the centreline of 2 deck.

On board the Type 12 frigate HMS Londonderry (1958) alongside the west wall in the basin at Rosyth Dockyard, near the end of her modernization which commenced 7 July 1967 and completed 28 January 1970. The photographer is in the transmitting station cooling compartment between 28¼ and 30½ stations on the centreline of 2 deck looking forward showing two 692/2 cabinets on the left and a 692/2 test unit with an EAH unit above it on the right. Four junction boxes are against the forward bulkhead.