[Boatanchors] microswitches

[CLIVE COLLINS]

Good morning gentlemen,
  I am looking for a microswitch that is the type used for airflow detection using a small vane on a thin wire actuating arm. It is for use in the air stream of a cooling turbine in a power amplifier assembly.
  Cant find a reference to this type of device in the usual places.
  Does anyone have one of these that they dont want and will consider exchanging for something else or in desparation, money?
  Thanks in advance and all good wishes.
   
  Clive GW3WEQ