Down the Rabbit Hole
With the Ten Tec Argonaut 509 restored and working well, it was time to try it out. The Anderson Power Pole made it easy to connect an 8 amp hour gel cell. I hooked it up to my end-fed half-wave antenna and listened around 20 meters. There were plenty of CW signals and I quickly realized a CW filter was going to be needed.
By now, I’ve written about quite a few classic Ten Tec radios. There are those who would argue that the Argonaut, first introduced in 1972, started it all though. It was the first recognizably Ten Tec product and would set the style for decades to come. It was also the first popular QRP transceiver that included both CW and SSB modes.