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Specifications |
model 2120B |
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VERTICAL AMPLIFIERS (CH 1 and CH 2) |
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Sensitivity |
5 mV/div to 5 V/div, 1 mV/div to 1 V/div at X5 |
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Attenuator |
10 steps in 1-2-5 sequence. Vernier control provides full adjustment between steps. |
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Accuracy |
+-3%, +-5% at X5 |
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Input Resistance |
1 M
 +- 2% |
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Input Capacitance |
25 pF +- 10pF |
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Frequency Response |
5 mV to 5 V/div: DC to 30 MHz (-3 dB). X5: DC to 10 MHz (-3 dB) |
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Rise Time |
12 ns (Overshoot <= 5%) |
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Operating Modes |
CH 1: CH 1, single trace |
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CH 2 |
CH 2, single trace |
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ALT |
dual trace, alternating |
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CHOP |
dual trace, chopped |
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ADD |
algebraic sum of CH 1 + CH 2 |
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Polarity Reversal |
CH 2 only |
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Maximum Input Voltage |
400 V (DC + AC peak) |
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SWEEP SYSTEM |
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Sweep Speed |
0.1 us/div to 2s/div in 1-2-5 sequence, 23 steps. Vernier control provides fully adjustable sweep time between steps. |
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Accuracy |
+-3% |
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Sweep Magnification |
10x |
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TRIGGERING |
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Triggering Modes |
AUTO (free run) or NORM, TV-V, TV-H |
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Trigger Source |
CH 1, CH 2, ALT, EXT, LINE |
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Maximum External Trigger Voltage |
300 V (DC + AC peak) |
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Trigger Coupling |
AC 30 Hz to 30 MHz |
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TV H |
Used for triggering from horizontal sync pulses |
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TV V |
Used for triggering from vertical sync pulses |
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TRIGGER SENSITIVITY |
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Coupling |
Bandwidth |
Int |
Ext |
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Auto |
100 Hz - 30 MHz |
1.5 div. |
100 mV |
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Norm |
DC to 30 MHz |
1.5 div |
100 mV |
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TV V |
20 Hz-1 kHz |
5 div |
100 mV |
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TV H |
1 kHz-100 kHz |
.5 div |
100 mV |
|
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HORIZONTAL AMPLIFIER (Input through channel 2 input) |
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X-Y Mode |
Switch selectable using X-Y switch. CH 1: X axis |
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CH 2 |
Y axis |
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Sensitivity |
Same as vertical channel 1 |
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Input Impedance |
Same as vertical channel 1 |
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Frequency Response |
DC to 1 MHz typical (-3 dB) |
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X-Y Phase Difference |
Approximately 3'' at 50 kHz |
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Maximum Input Voltage |
Same as vertical channel 1 |
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CRT |
|
Type |
Rectangular with internal graticule |
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Display Area |
8x10 div (1 div = 1 cm) |
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Accelerating Voltage |
2 kV |
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Phosphor |
P31 |
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Trace Rotation |
Electrical, front panel adjustable |
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Other Specifications |
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Calibrating Voltage |
1 kHz (+-10%) Positive Square Wave, 2 V p-p (+-3%) |
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ENVIRONMENT |
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Within Specified Accuracy |
50 0 to 95 0 F (10 0 to 35 0 C), <= 85% RH |
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Full Operation |
32 0 to 104 0 F (0 0 to 40 0 C), <=85% RH |
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Storage |
-4 0 to 158 0 F (-20 0 to +70 0 C) |
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Power Requirements |
100/120/220/240 VAC +- 10%, 50/60 Hz, approximately 40 W. |
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Dimensions (WxHxD) |
7x14.5x17.25'' (180 x 370 x 440 mm) |
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Weight |
Approximately 17.2 lbs. (7.8 kg) |
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Two Year Warranty |
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Accessories |
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SUPPLIED: Instruction Manual, Two PR-33A x1/x10 Probes or equivalent, AC Power Cord, Spare Fuse
OPTIONAL: PR-32A Demodulator Probe, PR-37A x1/x10/REE Probe, PR-100A x 100 Probe, PR-55 High Voltage x1000 Probe, LC-210A Carrying Case |
