| Specifications |
Model
2121 |
| 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 MΩ
+- 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 |
| Display
Resolution |
Auto select
from 0.001Hz to 1KHz depending on the frequency |
| Max Counter Range |
0.1Hz to 50MHz |
| Max External
Voltage |
300V dc + ac
peak |
| Accuracy |
+0.01% + 1
digit or 1/99999 + 1 digit |
| Time Base |
18,432MHz +
10ppm (230 C +/- 50 C) |
| Sensitivity |
Electrical, front panel adjustable |
| Sensitivity |
Note:
- The counter n=must be set at
"DC COUPLING" operation then the input signal is less than
10Hz
- The counter is operated by
the "Trigger Source" CH1, CH2, or EXT.
| Mode |
Range |
Sensitivity |
| INT |
2Hz ~
40MHz |
>=
1 Div |
| 1Hz ~
45MHz |
>=
2 Div |
| 0.2Hz
~ 50MHz |
>=
3 Div |
| EXT |
10Hz ~
50MHz |
>=
200m Vrms |
| 1Hz ~
50MHz |
>=
400m Vrms |
|
| |
| 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) |
| Warranty |
Two Years |
