Dumpster save

[anino]

Cool find today at work while deep cleaning the shop. No idea on the age, just know I've never seen one like this before.

 

[Michael B.]

Nice save!

 

[Packard V8]

Those are nearly-100-year-old battery load testers.

jack vines

 

[humber2]

It’s a Weidenhof made tester, not that old as early testers were 2 volt, one cell at a time.

This one is for the full 12V as modern batteries have inaccessible internal cell connectors.

I have this model and it’s big brother, it has another resistance grid for testing at double the load if required.

Undoing the thumbscrew opens the shunt and allows no load voltage to be read.

 

[Captain Spaulding]

Still in business https://www.hoytmeter.com/contact-us

 

[bonneyman]

Nice analog tester!

 

[genog]

That is cool!

 

[lilredex]

Here's a cell tester that came through my collection recently.

 

[humber2]

That is cool!

Not cool after testing a good battery, anything but, sometimes a worry where to safely put the tester down without burning anything.

 

[JradM]

This feels like something Hand Tool Rescue would operate one. Old with an element of danger (pun intended). Neat tool!