A lot of these stories are from those who were hamming long before me. My first rig was purchased off eBay. An MFJ 9420. I don't remember where I got the power supply. I tried a reclaimed computer supply, but it was too noisy. Then there was 2009 Field Day where I ran it off of 10 D cells for 121 Qs. Eventually I moved up to a used TS-520. Great receiver.