Old Vintage Analogue Meters

Sticking to the theme of vintage technology, I thought it would be interesting to look at the construction of some old analogue current and volt meters.
CONTENT:
00:04 - Intro
00:20 – Moving coil meter
01:00 – Moving Iron meter
01:50 - Construction of early type
04:54 – Temperature difference current meter
06:38 – 3ph kWh meter stop mechanism
08:15 – thanks

Видео Old Vintage Analogue Meters канала tuopeek