tube tester
I bet there’s somebody somewhere that knows why the three bottom left sockets are red.
Finding a less potato image of this device on Google, the red sockets are not testing sockets but "pin straighteners"
This is a most excellent place for technology news and articles.
I bet there’s somebody somewhere that knows why the three bottom left sockets are red.
Finding a less potato image of this device on Google, the red sockets are not testing sockets but "pin straighteners"