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