first post! I found this diode (a pair actually) at the bottom of a parts bin at a local surplus store. I was intrigued by the markings; I've never seen a white painted diode, or the "TN" (or TZ?) logo.
I've measured the forward voltage drop to be 0.31V with a peak atlas DCA55, so I'm assuming it's germanium.
Does anyone recognize this diode? Or the TN/TZ logo? Thanks!