Sony part needed

Hi m8's,I am trying to repair a sony trinitron tv model kv25x5u,after some research and investigation the fault appears to be a 9v stabiliser ic TYA7809ctv,trouble is I cant find one anywhere and need to try and find an equivalent.Hope you can help.
Many thanks TED

Well it might help if you had your location filled in?.

But it's just a standard 7809 regulator, 9V 1A - the prefix is only the manufacturer's letters, try LM7809, or just 7809.