Where to buy high power HBT transistors for using at X-band frequencies?

Hi,

I'm interested in purchasing some high power (1W-10W) HBT transistors for use at X-Band frequencies. Can anyone suggest a company that sells this type of device.

Best Regards, Simon.

Use Google for finding

Thank you for that most helpful reply. I have indeed tried Google and unfortunately the only packaged parts I can find are of the low power variety.