PRODUCT SAFETY ADVICE
This device casing contains beryllium oxide, the dust of which is toxic. The device is entirely safe provided that the BeO disc is not damaged (DO NOT GO FILING IT!)

Philips RF Power transistor
BLW81NPN silicon planar epitaxial transistorRF Power Output – typically 10WTypical use is mobile communications, 13.5V DC supply railGain @ 175Mhz 13.5dB 470Mhz 6dBAbsolute maximumsIc 2.5A or 7.5A PeakPtot 40WVce 17V or 36V Peak