More than I expected

I had the same problem with a 1 watt driver ceramic case device. I needed some additional heat sinking for the ceramic case device. So, I just drilled a hole in the PCB, inserted a brass rivet, filled it with solder, and flattened it in an arbor press. A bit of silicon grease on both sides of the rivet and it carried enough heat to the aluminum chassis to make it work.

That amp is generic on ebay and Amazon. Lots of people sell them and specs are all over the place.

We're using these in a test fixture

and it works OK, but it really won't make 3.2 watts out.

I wanted to buy a boxed amp from RM Italy, but they seem to have some legal problem selling their wideband units in the USA. I've ordered a look-alike

This is to test our IQ modulator/eddy-current sensor simulator in production. We need a few watts into 50 ohms at around 15 MHz.

On a sunny day (Sat, 13 Jul 2019 11:29:22 -0700) it happened John Larkin wrote in :

Yes, but mine will run at 2.4 GHz 1 W out as driver for my 75 Watt Spectrian ATV sat uplink:

Well I have a Ranger RCI-2970 150W PEP transceiver for those frequencies... Digital tuning. AM, FM, SSB.. Makes a great signal generator I suppose... 100 Hz tuning steps. Used it on CB too, worked large parts of the whole world with it. Do not remember what I payed for it, guy came to my house to deliver it, he had modified it for greater frequency range including CB.

Not sure I can tune mine that low, not below 27 MHz. There are a lot of linears on the market, yes Italy seems to be on the air a lot with horrible huge amounts of power :-) That was probably illegal, so he cannot ship, or even use it. Some run kW.