The Tektronix 5B25N is a "digitizer time base" for the 5223 scope, i.e. a time base that also contains a sample clock generator. It will also operate in 5400-series mainframes as a generic time base.
|Sweep||200 ns/Div to 5 s/Div, 1—2—5|
|Triggering||> 0.4 Div or 50 mV to 1 MHz, > 0.6 Div or 200 mV to 20 MHz|
|X-Y mode||50 mV/Div, 180 ns rise time, 2 MHz bandwidth, 1 MΩ // 24 pF input|