designing a radio amplifier

All you've done is describe how much (or in this case how little) power the unit can draw, under 24watts, which given inefficiency will result in less than 24watts output power.

You've said nothing about what will drive this amplifier, so one can't figure out how much gain it needs to provide.

You've said nothing about the frequency range, which becomes a factor in choosing a device or devices to do the actual amplification, and of course the application will define the design, since a broadband amplfier is different from a narrow band one.

These things are far more important than what you've offered up.

Michael

I guess English is not a requirement for mechanicanical engineering?

-Bill

The original message appears to have been posted from Kenya, his first language may be Swahili.

Bob

My mistake. The poster did well considering language differences.

-Bill