[sdiy] Buffered opamp used as a 2Mhz power amp...

[gordonjcp at gjcp.net]

On Wed, Aug 20, 2014 at 09:59:05AM -0400, Jean-Pierre Desrochers wrote:
> This is out of 'usual' topics for synth DIY forum but
> some of you guys could have some clues about it..
> 
> I want to build a small power amp (5-10w @ +/- 15vdc) that
> could drive a 50 ohms load with a fixed 2Mhz pure sine.
> I'd like to use an opamp driving a push-pull stage (ex: using TIP29-30)
> What type of opamp could be used at that frequency ?
> The input level would be around 1vpp.
> I was thinking of NE5532 as a frontend..
> 
> Thanks..

You're getting into the realms of power RF engineering.  Have a look at how power amps for the 160m and 80m amateur bands are constructed.

-- 
Gordonjcp MM0YEQ