#hive-163521 Trending Posts - Hive Images

19 days ago

The magic of old devices / Kouzlo starých přístrojů Well, tell me yourself, would you throw away such gems? Tesla BM556 oscilloscope with a screen with a typical green screen with electrostatic deflection of the electron beam.…

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20 days ago

Thermometer Vertex / Teploměr Vertex I recently came across an interesting historical artifact at work. A Vertex thermometer with an adjustable switching contact. This is a precise mercury thermostat, manufactured…

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