My spring collapsed I had a spare one so I exchanged it but noticed it still sparkles when I push the button, this one might have collapsed again and I am with only one left . Whats going on in here?
You should think about a mulitmeter. I check every atty and carto prior to using them. You can get them as cheap as 5 dollars.
what is the process of testing an atty with a meter
how would u know its bad