Shaos entered a (balanced) ternary electronic device based on the 74HC4052 into the Open 7400 Logic Competition.
Ternary Balanced ternary is a base-3 number system, instead of bits (0, 1, 10, 11, etc), this counts in trits (-1, 0, 1):
The “Test bed” consists of 20 sockets for testing “our standard ternary components“. For ternary full adder only 7 sockets are used…
+5 volts is positive ternary value (P) – GREEN LED, 0 volts is zero ternary value (O) – OFF LED, -5 volts is negative ternary value (N) – RED LED
Via the forum.
Check out the video after the break.