[IMSAI Guy] grabbed an obsolete XOR gate and tried a classic circuit to turn it into a frequency doubler. Of course, being an old part, it won’t work at very high frequencies, but the circuit is super ...

Switching algebra is easily visualized using switches since there are only two values: on and off, or true and false. In digital systems we represent these as 1 and 0, respectively. There are only two ...

In the 8th May 2006 issue of EE Times, I published a “Brain Boggler” in my Logically Speaking column. The idea is that we have a black box with three inputs called A, B, and C; and three outputs ...