rons
Diamond
- Joined
- Mar 5, 2009
- Location
- California, USA
I came across a Frahm frequency meter today. It is a pretty cool device to monitor line frequency. The 58-62 Hz one I looked at is this one:
Frahm Frequency meter - Google Search
You can read about it here:
The vibrating reed frequency meter: digital investigation of an early cochlear model [PeerJ]
Frahm Frequency meter - Google Search
You can read about it here:
The vibrating reed frequency meter: digital investigation of an early cochlear model [PeerJ]