GRAMPIAN TYPE MCR MICROPHONE, 1930's

Early Moving Coil Microphone used with Public Address systems.

Your comments:

• I have one of these and was surprised to see one in an air museum wired to a Bomber Command transmitter used in WWII.
  Not sure if this was a genuine alliance?
  However I have regularly seen them on films of that era used as a PA mike and even used by singers of big bands.
  Unfortunately on TV dramas I've seen them used round the other way, being spoken into from the back; shame on the sound man!
  .......... Mike Goodall, Cambridgeshire, UK, 11th of November 2010
  
  
• I have one of these and although the device appears rudimentary, the design of a cone shaped receptor, attached to the coil, is mounted so that it sits between the front apperture and the side appertures. This makes the microphone behave as a velocity microphone and is quite directional.
  
  .......... Iain Mitchell, Aberdeen, 22nd of March 2009
  
  

A0583