Vacuum Sensor

[frog]

While playing around under the dashboard removing some spare wires someone had fitted that were not connected to anything, i noticed that my vacuum pipe was adrift, after closer investigation i noticed that it was actually broken off from the sensor.
Is the sensor available to buy seperately? Does anyone know the part number?
What other options of repair / bodge are available?

[Veedubgt18v]

go to the scrappy and pinch one of the back of the clocks?

[Mk1Mad J - 16v]

I'll be playing with my clocks tonight (if the rain holds out  ) I'll try and find the part number - you are talking about the round bit on the back of the clock cluster where the vacume pipe connects aren't you?

[Mk1Mad J - 16v]

That round black bit in the middle  191 907 3460