Here’s a slightly odd shot, of some no longer functioning gauges found in a tin mine museum in Cornwall.
![](https://i0.wp.com/needlemind.co.uk/wp-content/uploads/2020/06/needle_pressure_gauge.jpg?resize=1024%2C873)
What did this image teach me?
Bourdon vacuum tube pressure gauges are quite common.
Here’s a slightly odd shot, of some no longer functioning gauges found in a tin mine museum in Cornwall.
Bourdon vacuum tube pressure gauges are quite common.
by
Tags:
Leave a Reply