An honest question. I was parsing through some of the Amateur Radio posts on Facebook and there were several posts for 9:1 UNUNs available through eBay.
Now, I'll the first to profess that I'm no EE. And most of my home brew projects come out looking like those baking failures you find on Instagram. And I'm certainly not on par with the home brewing skills of my good friend W3BBO who builds transmitters and receivers that are so good looking, that you'd WANT one in your shack. Nothing "ugly" about his construction techniques.
But a 9:1 UNUN? Really?
Even "Mr. Two Thumbs" W2LJ can handle one of those!
And I have! And, gosh darn, it actually even works!
So if I can do it, you can do it, too. The parts are easy to find and the step by step instructions are easily found on the Web. Just search for "EARCHI". You can "roll your own" for half the price you'd pay on the online auction site. And maybe, just maybe, you can buy parts in bulk and have yourself a club project. Now THAT'S an idea!
72 de Larry W2LJ
QRP - When you care to send the very least!