Q: Why do oscilloscope measurements drift over time?

A: Plate Tektronix.
@niconiconi the sighs can be heard from all the way over in beaverton
@niconiconi May I retell this joke with credit to some of my EE colleagues? :D
@niconiconi Does this only apply to vacuum tube Tek scopes? Maybe my 545 doesn't work any more because a fault slide the trace right off the screen?

@niconiconi BOOOOOOOOOOOOOOOOOOOO

Bravo. ๐Ÿคฃ

@niconiconi
Thanks. I hate it.

Take you like and leave.

@niconiconi ๐Ÿ‘ ๐Ÿ‘ ๐Ÿ‘
@niconiconi Plate Tektronix happens when the trigger input is left disconnected.
@niconiconi my wooden leg is itching already ๐Ÿ˜€