Three mounted photographs showing receiving set, phonic motor and decimal counter Photographs showing receiving set, phonic motor and decimal counter 1952
Representative sample of the equipment used for maintaining the Greenwich Time Service from about 1965 to 1990 comprising six racks of electronic equipment, two end doors, five rear doors, three covers, printer and sign. Equipment used for maintaining the Greenwich Time Service, 1965. 1965-1970
Three mounted photographs showing the transit telescope, tape chronograph and computing room Photographs showing the transit telescope, tape chronograph and computing room 1952
Four mounted photographs showing quartz oscillators and their ovens Photographs showing quartz oscillators and ovens 1952
Four mounted photographs showing tape chronograph, beat counters, calculating machine and beat counter records Photographs showing tape chronograph, beat counters, calculating machine and beat counter records 1952
Three mounted photographs showing phonic motor, signal forming unit and send relay units Photographs showing phonic motor, signal forming unit and send relay unit 1952