mrf5007r.pdf datasheet:

MOTOROLAOrder this documentSEMICONDUCTOR TECHNICAL DATAby MRF5007/DThe RF MOSFET LineMRF5007RF Power Field Effect TransistorNChannel EnhancementModeThe MRF5007 is designed for broadband commercial and industrial7.0 W, 7.5 Vdcapplications at frequencies to 520 MHz. The high gain and broadband512 MHzperformance of this device makes it ideal for largesignal, common sourceNCHANNELamplifier applications in 7.5 Volt portable FM equipment.BROADBAND Guaranteed Performance at 512 MHz, 7.5 VoltsRF POWER FETOutput Power = 7.0 WattsPower Gain = 10 dB MinEfficiency = 50% Min Characterized with Series Equivalent LargeSignal Impedance Parameters SParameter Characterization at High Bias Levels Excellent Thermal Stability All Gold Metal for Ultra Reliability Capable of Handling 20:1 VSWR, @ 10 Vdc, 512 MHz, 2.0 dB Ov