Ah keypads. Before fingerprints and retinas, they were the ultimate in security, boasting over 3.5 million possible permutations here at Gadgetbox with the Thanko Morse Code Drive. Here’s the scoop.

Larry Kahaner - Larry Kahaner is an American journalist and author who resides in Bethesda, Maryland. Steve Galchutt shows off the custom-made low-wattage transmitter he uses on his treks. Chase Brush ...