FEATURES
LOW COST, HIGH PERFORMANCE
B+K Precision Model 2190B is one of the most economi-
cal 100 MHz analog oscilloscopes on the market, yet it has
all of the high performance features needed for most appli-
cations, including delayed time base, bandwidth limiter, and
Y axis output. This oscilloscope is built by and backed by
B+K Precision, a company that has been selling reliable,
durable, value priced test instruments for over 50 years.
CRT FEATURES
Rectangular CRT
Rectangular CRT with large 8 x 10 centimeter viewing
area.
Convenience
Trace rotation electrically adjustable from front panel.
0%, 10%, 90%, and 100% markers for rise time meas-
urements.
DUAL TRACE FEATURES
Dual Trace
Model 2190B has two vertical input channels for dis-
playing two waveforms simultaneously. Selectable
single trace (either CH 1 or CH 2) or dual trace.
Alternate or chop sweep selectable at all sweep rates.
Sum and Difference Capability
Permits algebraic addition or subtraction of channel 1
and channel 2 waveforms, displayed as a single trace.
Useful for differential voltage and distortion measure-
ments.
HIGH FREQUENCY FEATURES
Wide Bandwidth
Conservatively-rated
−
3 dB bandwidth is dc to
100 MHz.
Fast Rise Time
Rise time is less than 3.5 ns.
Fast Sweep
Maximum sweep speed of 2 ns/div (with X10 MAG)
assures high frequencies and short-duration pulses are
displayed with high resolution.
VERTICAL FEATURES
High Sensitivity
5 mV/div sensitivity for full bandwidth. High-sen-
sitivity 1 mV/div and 2 mV/div using PULL X5 gain
control.
Calibrated Voltage Measurements
Accurate voltage measurements (
±
3%) on 10 cali-
brated ranges from 5 mV/div to 5 V/ div. Vertical gain
fully adjustable between calibrated ranges.
SWEEP FEATURES
Calibrated Time Measurements
Accurate (±3%) time measurements. The main sweep
has 23 calibrated ranges from 0.5 S/div to 20 nS/div.
The delayed sweep also has 23 calibrated ranges from
0.5 S/div to 20 nS/div. Sweep time is fully adjustable
between calibrated ranges.
X10 Sweep Magnification
Allows closer examination of waveforms, increases
maximum sweep rate to 2 nS/div.
DUAL TIME BASE FEATURES
Dual Sweep Generators
Main sweep gives normal waveform display, delayed
sweep may be operated at faster sweep speed to expand
a portion of the waveform.
Four Sweep Modes
Choice of main sweep only, delayed sweep only,
main sweep and delayed sweep sharing the trace
(percentage of main/delayed sweep adjustable), or
X
−
Y.
Adjustable Start Of Delayed Sweep
DELAY TIME POSition control allows adjustment of
delayed sweep starting point.
TRIGGERING FEATURES
Two Trigger Modes
Selectable normal (triggered) or automatic sweep
modes.
Triggered Sweep
Sweep remains at rest unless adequate trigger signal is
applied. Fully adjustable trigger level and (+) or (
−
)
slope.
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