Berny's photos with the keyword: dial

gauges

08 Dec 2019 21 2 289
The PiP shows the main switchboard from behind!

Null - Voltmeter

Megawatt

07 Dec 2019 22 4 292
and another nice instrument:

the electrons' path

AMPÈRES

07 Mar 2019 14 7 331
coal mine Bois du Luc - power plant see PiP!