The Tektronix 7313 is a 25MHz* storage oscilloscope mainframe that takes two 7000-series vertical plug-ins and one 7000-series horizontal plug-in. The direct view bistable storage CRT is 8cm tall and 10cm wide. The upper half and lower half are independently controllable with regard to storage settings.
* The Tektronix website mistakenly identifies it as 65MHz.
The low voltage power supply is linear. It produces +50V, -50V, +15V, -15V, +5V, and +130V.
The vertical amplifier is fully discrete.
There is also a rack-mount version, the R7313.