If you are looking for a small amp for your QRP rig to take to the field well this is the one. Very light and doesn't pull much current. You can adapt it to almost any QRP rig, even home brew, and if you have about a watt output it will work. Great for Field Day to plow through the QRM. Just remember, keep the SWR below 1.5 to 1 and you will be a happy camper.
This amplifier has allowed me to continue making contacts thru the winter with less than optimal conditions. The extra punch of 45 watts on 10-80 meters has been great. Excellent signal reports with no reports of distortion or other issues. Only wish it covered 160 meters also.