Cool looking BBC test set dating from the 60s which can still occasionally be found lurking in dark cupboards and behind installations throughout the Corporation.
A handy meter for independent level testing.
One of a number of different attenuators designed by the BBC, the portable PAT/3A was intended for the test engineer in the field.
Extremely useful for ‘padding down’ the input of other fixed gain BBC equipment such as Type A and Type B valve amplifiers.
Note the screw terminals which were common on outside broadcast and field test equipment.