271/IN OSCILLOSCOPE : 10MHz, SINGLE TRACE

FEATURES
· DC to 10MHz Bandwidth 
· 5mV/DI v Sensitivity 
· 100ms / div to 100 ns / div Time Base 
· X Y Operation
· Auto or Normal Trigger Selection
· Triggering upto 15MHz 
· 8 x 10 cm Display
· Trace Rotation 
· 140mm Rectangular Internal Graticule CRT 
· Space Saver
· 1.5KV Mono Acceleration

SPECIFICATIONS

VERTICAL DEFLECTION (Y)
Deflection Coefficient : 5mV to 20V/DI v in 12 calibrated attenuator positions with 5mV / div, 10mV / div & 20mV / div as basic ranges & 4 multipliers x 1, x10, x100 & x1000.
Accuracy : 5%.
Bandwidth : DC 10MHz ( - 3dB), dc coupled. 10Hz 10MHz (-3dB), ac coupled.
Rise Time: 35ns or less.
Input Impedance: 1M ohms & 40pF approx.
Maximum Input Voltage : 400 Volts (dc + peak ac).

TIME BASE
Sweep Speed : 6 Calibrated steps 100ms/DI v to 1/DI v.
Accuracy : 5%.
Variable : (10:1 approx). Uncalibrated continuously variable control between steps. Extends fastest sweep speed to 100ns/DI v.

TRIGGER SYSTEM
Trigger Mode : Automatic (>50Hz) or Normal with level control.
Source : Internal or External.
Trigger Sensitivity :
Internal : Auto 1 div - 30Hz to 15MHz. Normal 1 div 10MHz.
External : Auto 1V p-p - 30Hz to 15MHz. Normal 1V p p 10Hz to 15 Mhz.

X Y MODE
Deflection Coefficient : 1V/DI v
Accuracy : +5%
Bandwidth : 10Hz - 1MHz (-3dB).
Input Impedance :1M ohms & 40pF approx.

GENERAL INFORMATION
Trace Rotation : Right side control allows +5° of trace adjustment.
Power Requirement : 115V / 230V AC +10%, 47/65Hz, 30VA (max.).
Dimensions: 270(H) x 150(W) x 395(D)mm.
Weight : 6 Kgs.
Accessories : Instruction Manual, 1 input BNC Lead. Optional : High impedance switch probe with x 1 or x 10 
attenuation

272/IN OSCILLOSCOPE : 20MHz DUAL TRACE

FEATURES
· DC- 20 Mhz Bandwidth
· 1mV/DI v Sensitivity on Both Channels
· Ch1, Ch2 ( Independent Channels ), Ch1 INVT, ADD and SUBTRACT
· X-Y Operation
· 40ns/DI v to 0.2s/DI v Time Base
· 140mm Rectangular CRT with Internal Graticule
· Triggering to 40MHz
· Z Modulation ( TTL Level)
· 8 x 10 cm Display
· TV Triggering Frame (v) & Line (H)
· Line Trigger
· Component Tester

SPECIFICATIONS

VERTICAL DEFLECTION
Deflection Coefficient ( CH1 & CH2 ) : 1mV/DI v to 20V/DI v, 5mV/DI v to 20V/DI v in 12 calibrated steps 
in 1-2-5 sequence. x5 magnification increases sensitivity to 1mV/DI v and 2mV/DI v ( LED indication ).
Accuracy : +3%
Bandwidth : DC- 20 MHz ( -3dB), dc coupled. 10Hz - 20 MHz ( -3dB), ac coupled. DC - 28MHz ( -6dB).
Rise Time : 17.5n sec. or less.
Display Modes : Ch1, Ch2, Ch1 & CH2, Alternate or Chop mode & X-Y, CH1-Y, CH2-X, Algebraic ADD and SUBTRACT 
with CH2-INVT.
Input Impedance : 1M ohms & 25pF ( app.)
Maximum Input Voltage : 500 Volts ( dc + peak ac.)
Internal Trigger Signal : Ch1 or Ch2.

TIME BASE
Sweep Speed : 18 calibrated steps. 0.5uS/DI v to 0.2 S/DI v in 1, 2 & 5 sequence.
Sweep Magnifier : x5 Magnification extends the sweep speed to 100nS/DI v. X5 Magnification indication with LED.
Accuracy : +3%
Variable : Uncalibrated continuously variable Control between steps, extends fastest Sweep speed to 40nS/DI v (approx). (Uncal LED indication).

TRIGGER SYSTEM
Triggering Mode : Automatic or Normal with Level Control.
Source : CH1 / CH2 / LINE / EXT.
Slope : Positive or Negative
Coupling : ac / dc / HF reject or TV Frame / TV Line.
Trigger Seinsitivity : Internal AUTO 0.5 div 30Hz-20MHz, NORM 0.5 div 3Hz 20MHz, External AUTO 0.8V p p 30Hz 20MHz. (TYPICAL 40MHz)

HORIZONTAL DEFLECTION
Deflection Coefficient : Same as CH2.
Bandwidth : DC 2.5 MHz (-3dB). Phase shift <3 deg. At 60KHz.
Input Impedance : 1M ohms and 25pF (approx.)

COMPONENT TESTER
Component Tester allows V- I characteristics of a Device Under Test ( D. U. T. )
Test Voltage : 8.6 V r. m. s. 
Test Current : 28 mA max.
Test Frequency : 50Hz or 60Hz (MAINS).

GENERAL INFORMATION
Cathode Ray Tube : 140mm Rectangular screen, Internal Graticule, 8 x 10 cm, P43 phosphor.
Accelerating potential: 2KV.
Trace Rotation : Front Panel control, allows + 5°of trace adjustment.
Z Modulation : TTL level.
Calibrator : Provides 0.2V 1%, 1KHz (approx.) Squarewave output for probe compensation.
Power Requirement : 230V AC 10%, 47 65Hz, 40VA or 115V AC 10% (on request).
Dimensions : 165 (H) x 320 (W) x 420 (D) mm approx 
Weight : 8.0 Kgs. Approx.
Accessories : Manual with Circuit 1 No. 
Diagrams : BNC Crocodile Cable - 1 No. 
Component Tester Lead - 1 No. 
Optional : High impedance switch probe 
with x 1 or x 10 Attenuation, trolley.
Environmental Specifications : 
Normal : 10 deg C 40 deg C RH 85%
Operational : 0 deg C to 50 deg C RH 85%