here are the Specification :
Power Input = 30-100 Watt SSB
Output Power = 800 Watt
Voltage = 17-20 Vdc
Transistor = 8 units IRFP150N ( Many in Ebay for $ 2 each )
Frequency = 2 Band 3,5-14 Mhz,
3.8Mhz = 600 Watt , Peak
7 Mhz = 800 Watt. Peak Power
11 Mhz = 500 Watt, Peak
14 Mhz = 300 Watt , Peak