AN/USM-488

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The AN/USM-488 is an oscilloscope made my Tektronix for the US Department of Defense. It closely resembles a 2235.

Does it differ at all?

Key Specifications

Bandwidth	90 MHz at 2 mV/Div, 100 MHz at 5 mV/Div and above; switchable 20 MHz limit
Rise time	3.9 ns at 2 mV/Div, 3.5 ns at 5 mV/Div and above
Deflection	2 mV/Div to 5 V/Div, 1−2−5, ±2%, and variable 2.5:1
Time base	50 ns/Div to 500 ms/Div (B timebase to 50 ms/Div), 1−2−5,  ×10 magnifier for fastest deflection of 5 ns/Div
Input impedance	1 MΩ // 20 pF
Trigger sensitivity	0.3 Div or 35 mV up to 10 MHz, 1 Div or 120 mV up to 60 MHz, 1.5 Div or 200 mV up to 100 MHz
CRT	80×100 mm² display area, P31 phosphor, 14 kV acceleration voltage
Power	90−250 VAC, 48 to 440 Hz, 40 W
Size	137 mm × 327 mm × 440 mm (5.4" × 12.9" × 17.3")
Weight	5.2 kg (11.5 lb) without accessories
Features	Delayed timebase X−Y mode Z input

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