> Then there is the internal 7104 readout display.
> Why does this not burn-out MCP?
It does. That is why the readout intensity knob has an off
position, and a
pulsed mode that operates in several ways depending on a
range of settings.
If you leave it operating continuously it will absolutely
sensitivity of the MCP at the readout positions. I have
some images in the
pics section of Tekscopes that show an image of a single
shot trace at
200ps/div from a TD pulser. Those were taken with a Tek
C1002 CCD camera.
The slight graininess of the trace is due to the granular
individual electrons striking the MCP before
amplification. It is a helluva
tour de force of analogue scope engineering to do this.