I found this transformer and I am not sure if it is working. I am confused with the multimeter readings. For example: when I am using the buzzer option to check the connectivity it buzzes when I connect any of the 3 top ones (16ohms and 32ohms), but when I try to see the connection between the 665ohms it doesn't buzz, but it does show ohms when I use the 2K ohms option. Is this how it's supposed to work?

[![Transformer](https://i.stack.imgur.com/kc5oy.png)](https://i.stack.imgur.com/kc5oy.png)