Power plants use indicators to monitor process parameters such as pressure, flow, temperature, voltage, current, and vibration. Unless a facility is relatively new, it likely has analog panel meters; ...

Fig. 1: Note the 3 dB difference in left- and right-channel levels shown by the console VU meters in this photo of announcer Pete Vukelich in the studio of WWWI Radio in Baxter, Minn. Yes, we are in ...