Amp and Volt Meters 1800-Today

Galvanometers, moving coil meters, tube and digital multimeters this video explains the evolution of ammeters, watt-hour meters and voltmeters from 1800 until today. Learn about magnetics and how meters work. This is the official Unit 1 video for the Universe of Instrumentation Program.

[@toddberg3892]

Two of the diodes in the bridge rectifier are reversed at 6:00 - enjoyed the video, thanks for posting.

[@imgertberg5344]

Just wanted to comment that, diodes have to be flipped either the two upper or two bottom ones.

[@NineInchFailz]

Left hand rule? Man everything I learned in college followed the right hand rule

[@SlyPearTree]

Multimeter development did nor require the invention of tubes or transistors. They existed before and were widely used until their electronic counterpart were as cheap or cheaper.

[@TheZafootz]

They still helped in the evolution of electrical technology. Only thing is now the idea behind what work being done for someone with electrical devices and current is long sense forgotten.... Now its all about building something that can make money and not using ones imagination to build/invent something electrical that can do physical work for anyone. Thus in a sense (from then on)making the physical material do work for them using only the minds imagination and intelligence.

[@BYENZER]

@@TheZafootz Paul, do you truly think, back then, the primary motivator, was not $$? If so, your thinking is akin to a socialist. Are you a democrat?? Democrat socialists put 'social purpose' over 'profit'. But, profit is spelled, L-I-F-E. Lack of profit spells, D-E-A-T-H.

[@karl-arneblom7813]

Tesla?

[@ninjabeatz905]

No mention of Tesla or Steinmetz

[@dibertos]

They mentioned Westinghouse, and then complety ignored Tesla and Steinmetz but mentioned SHallenberger instead ? lol

[@danielross8082]

this is cool