• 2024
  • Jan
  • 15

That oddball connector on old test equipment…

You know the one I’m talking about - this thing:

sc2501f.png

It’s a Switchcraft 2501f Microphone Connector. It found it’s way into low-frequency RF devices after WWII, where it remained until displaced by the superior BNC connector.

They’re still available, but they are not cheap - expect to pay $14-15 for a new one! If you’re not worried about looks, just replace it with a BNC and be done with it, you get access to a wider range of connections.

You can view the data sheet here, or order one from Mouser.com here.

(not a sponsored link, just a company I’ve had good luck with over the years!)