BK Precision OSCILLOSCOPE - 2120B - 2 Channel - 20 MHz

Description:

BK PRECISION OSCILLOSCOPE

2 Channel / 20 MHz / Model 2120B

The faceplate on this oscilloscope clearly states "20 MHz".

Information posted online for this model, however, refers to "30 MHz".

(Perhaps this may be an earlier version of Model 2120B.)

For your reference only, the following is the information posted online for a 30 MHz Model 2120B.

(Not all of this information may be relevant to the Model 2120B on sale.)

B+K Precision's model 2120B is a dual trace oscilloscope 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 2120B 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 50 years.

• Dual or single trace operation
• 5 mV/div sensitivity
• AUTO/NORM triggered sweep operation with AC, TVH, TVV and line coupling
• Compact low profile design
  

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
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 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)

Product Condition:

As stated above, the reference on the faceplate of this BK Precision Oscilloscope Model 2120B refers to "20 MHz"!

This product was pulled from a working environment, but has not been tested.

It has been acquired through a bankruptcy sale of a major cell phone repair corporation.

The product is guaranteed against DOA, however, for a ten day period.

Please be sure you are aware of this limitation for this particular auction.

The power cord is included.

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