100MHz Analog Oscilloscope 2245A

VERTICAL SYSTEM (4 channels)
Bandwidth (-3dB) and Rise Time: 100 MHz and 3.5 ns (-10°C to +35°C); 90 MHz and 3.9 ns (2 mV/div or +35°C to +55°C). Bandwidth limit: 20 MHz.

Deflection Factor and Accuracy: CH 1&2: 2 mV/ div to 5 V/div; CH 3&4: 0.1 V/div and 0.5 V/div; all at ±2% (±3% outside +15°C to +35°C). CH 1&2 variable at least 2.5:1

Vertical Operating Modes: CH 1, 2, 3, 4, CH 2 INVERT, ADD, ALT, CHOP (625 kHz).

CMRR: At least 10:1 at 50 MHz.
Input R and C: 1 MΩ, 20 pF.
Max Input Voltage: 400 V (dc +peak ac) or 800 Vp-p.
Channel Isolation: 50:1 at 100 MHz.

HORIZONTAL SYSTEM
Sweep Speeds: A Time Base: 0.5 s/div to 20 ns/div; B Time Base: 5 ms/div to 20 ns/div (X10 MAG to 2 ns/div A and B)
Accuracy: ±2%; Magnified ±3% (degrade by 1% outside +15°C to +35°C).
Horizontal Operating Modes: A, ALT, B, X-Y.
Delay Jitter: 20,000:1.
Delay Accuracy: ±0.5% + 5% of one div +25 ns.

TRIGGER SYSTEM
Trigger Sensitivity (A and B)- dc: 0.35 div to 25 MHz, 1.0 div at 150 MHz.  Noise Reject: 1.4 div to 25 MHz, 2.2 div at 100 MHz.
HF Reject: attenuates above 70 kHz. LF Reject: attenuates below 50 kHz. ac: Same as dc, attenuates below 25 Hz. TV Line, TV Field: 0.5 div of composite sync for stable display.

Trigger Operating Modes: A mode: AUTO LEVEL, AUTO, NORM, TV LINE, TV FIELD, SINGLE SEG. B mode: RUNS AFTER DELAY, AUTO LEVEL, NORM, TV LINE (from A source).
Trigger Source (A and B): VERT, CH 1, 2, 3, 4, LINE.
Variable Holdoff: At least 10:1.

X-Y OPERATION
Deflection Factors: Same as vertical system.
X-Y Operating Modes: X: CH 1; Y: CH 1, 2, 3, 4, and ADD
Bandwidth:  X-Axis: 3 MHz; Y-Axis same as vertical System.
Phase Difference: ±3° from dc to 50 kHz.

CRT SYSTEM
Display: 8 cm x 10 cm, 16.5 kV nominal voltage.
Controls: BEAM FIND, FOCUS, A and B READOUT INTENSITY, TRACE
ROTATION and SCALE ILLUM.
Z-Axis: 3.8 volts causes noticeable modulation. Usable to 10 MHz.
 

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