The 7B52 is similar to the 7B53A which is much more commonly found (main difference is the separate mode switch which is integrated into the time/Div switch in the 7B53A).
|Sweep rates||50 ns/Div to 5 s/Div in 1—2—5 sequence|
|Deflection||10 mV/Div, 100 mV/Div or 1 V/Div, up to 2 MHz|
|Sensitivity||0.3 Div or 150 mV up to 10 MHz, 1.5 Div or 750 mV up to 100 MHz|
|Coupling||DC, AC (> 30 Hz), AC LF REJ (> 30 kHz), AC HF REJ (30 Hz — 50 kHz)|
|Input impedance||1 MΩ // 20 pF|
|Jitter||< 1 ns at 75 MHz|
The 7B52 supports X−Y mode through the "Amplifier" setting of the Time/Div switch. The Trigger Source determines whether the X signal is taken from a verical plug-in via the internal trigger path or from the external trigger input.
A switch accessible through the side panel allows the user to select the delayed timebase trigger input - either the main trigger signal on pins A20/B20, or an auxiliary trigger signal supplied via pins A21/B21. The 7403N mainframe supplies the Left Vertical trigger signal on these pins. It is not known if other mainframes supply this signal, and the 7B52 is the only plug-in known to access this signal. (Any information welcome!)