For the manual:
The Argonaut opens a whole new world of excitement and fun in Amateur Radio. We think you will find QRP a welcome change. Five watts are only 2-1/2 S-units below 150 watts for the same conditions. When skip is favorable and QRM light, you will not be conscious of using low power.
The small size (1/5 cubic foot) makes it ideal for portable operation in a motel, camper, trailer, or mobile operation in your car, boat or plane. As a result of its low power requirements, a 12 volt lantern or automobile battery will provide many, many operating hours. An ac pack, available as an accessory, will provide 117 V AC operation. You can choose ssb or cw on any ham band between 3.5 and 30 MHz.
Estimating the value of a rig can be challenging. We collect prices paid by real hams over the years to help you estimate the value of a used Ten-Tec Argonaut (509). Just bought or sold this model? Let us know what you traded it for and help other ham operators!
These estimates are based on the following prices: