Amplifier design

Job ID: 35361859

Budget: $30 – $250 USD

I need an RF amplifier.
The modulated signal has a fundamental between 0.1 and 23MHz, and the carrier wave is 3.1MHz.
Input signal is 500mVpp, and output must be 50Vpp.
The load is 300 ohm.

The power supply is 18 V VDC
Heat must be managed with a small heat sink and no fan.