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Maximum frequency 30 MHz
Channel: 2
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 Impedance 1 MΩ ±2%
Input Capacitance 25 pF ±10 pF
Frequency Response 5 mV to 5 V/div: DC to 30 MHz (-3dB). X5: DC to 10 MHz (-3dB)
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
Max. Input Voltage 400 V (DC + AC peak)
SWEEP SYSTEM
Sweep Speed 0.1 µs/div to 2 s/div in 1-2-5 sequence, 23 steps,
Vernier control provides fully adjustable sweep time between steps.
Accuracy ±3%
Sweep Magnification 10x ±10%
TRIGGERING
Triggering Modes AUTO (free run) or NORM, TV-V, TV-H
Trigger Source CH 1, CH 2, ALT, EXT, LINE
Max 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
Auto Bandwidth:100 Hz-30 MHz, Internal: 1.5 div, External: ≥0.5Vp-p
Norm Bandwidth: DC to 30 MHz, Internal: 1.5 div, External: ≥0.5Vp-p
TV V Bandwidth: 20 Hz-1 kHz, Internal: 1.0 div, External: ≥0.5Vp-p
TV H Bandwidth:1 kHz-100 kHz, Internal: 1.0 div, External: ≥0.5Vp-p
HORIZONTAL AMPLIFIER (Input through channel 1 input)
X-Y Mode Switch selectable using X-Y switch. CH 1: X axis, CH 2: Y axis
Sensitivity Same as vertical channel 2
Input Impedance Same as vertical channel 2
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 2
CRT
Type Rectangular with internal graticule
Display Area 8 x 10 div (1 div = 1 cm)
Accelerating Voltage 2 kV
Phosphor P31
Trace Rotation Electrical, front panel adjustable
Calibrating Voltage 1 kHz (±10%) positive square wave, 2 V p-p (±3%)
COMPONENT TESTER
Components Tested Resistors, Capacitors, Inductors, and Semiconductors
Test Voltage 6 V rms maximum (open)
Test Current 11 mA maximim (shorted)
Test Frequency Line frequency (60 Hz in USA)
Calibrating Voltage 1 kHz (±10%) positive square wave, 0.2 V p-p (±2%)
GENERAL
Temperature
Within specified accuracy: 50˚ to 95˚F (10˚ to 35˚C), 10-80% RH
Full operation: 32˚ to 122˚ F (0˚ to 50˚C), 10-80% RH
Storage: -22˚ to 158˚ F (-30˚ to +70˚C), 10-90% RH
AC Input 100/120/220/240 VAC ±10%, 50/60 Hz, approximately 40 W.
Dimensions (WxHxD) 7 x 14.5 x 17.25" (180 x 370 x 440 mm)
Weight 16.8 lbs (7.6 kg)
One Year Warranty
Supplied Accessories Instruction manual, two PR-33A X1/X10 probes or equivalent,
AC power cord and spare fuse
Optional Accessories
PR-32A demodulator probe, PR-37A x1/x10/REF. probe,
PR-100A x100 probe, PR-55 high voltage x1000 probe,
LC-210A carrying case
The 2125C has been replaced by the:
2190E
B&K Precision's model 2125C is a dual trace oscilloscope with a delayed sweep that offers high performance at a low price. Most competitor's entry level oscilloscopes have a 20 MHz bandwidth, while B&K Precision's models 2125C has a bandwidth of 30 MHz. 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 60 years.
Delayed sweep in 23 steps
Built in component tester for capacitors, inductors, diodes, transistors, zener diodes
23 step time base to 0.1ms/div
Deluxe handle/tilt stand
