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When I was a boy growing up on a remote farm in the 1960s in the southern tier of New York State, the winters were cold, the nights were long, and the snow was deep. Beyond the necessities of life, we had no spare cash, but I traveled the world anyway. Sometimes, it was by means of a hobby I picked up from my father, ham radio, using “homebrew” radios. For those of you who remember tubes, a 6AG7 oscillator driving a 6L6, feeding a pair of 807s in push pull will put a warm glow in your hearts, as well as 70 W of radio frequency on a crystal controlled 3.726 MHz.