[Boatanchors] ferrite rod

[CLIVE COLLINS]

Good evening gentlemen,
  Has anyone  a surplus length of half inch ferrite rod by about six inches long please?
  The application is as the core of a choke for an HF linear but this stuff seems to have dried up in this country.   Could use two pieces as I need another one for the heather bi-filar choke for Grounded Grid input use.
  Thanks in advance and regards,
   
  Clive GW3WEQ