China Oscilloscope 20MHz Analog Oscilloscope Component Tester Instruments CRT

Introduction
The SP series switching mode DC power supply are made with 1 output channel, rated power from 15W to 300W, with 3 digits LED 1999 or 4 digits LED 19999 display. The SP series are meant for a low-cost DC power supply which can be widely used in education and electronic industry.Features
Dual channel 20MHz/40MHz/50MHz
10 times sweep magnification
TV synchronization; X-Y mode
High illumination internal graticule CRT
Japanese encoded switch, reliable and durable
Fully sealed durable attenuation switch
ALT triggering function, enabling simultaneous observation of two independent signalsSpecificationsModel20MHz40MHz50MHzVertical systemSensitivity5mV~5V/DIV, 10 steps in 1-2-5 sequenceAccuracy≤3%Vernier sensitivity≤1/2.5 of panel indicated valueBandwidthDC (AC 10Hz)~20MHzDC (AC 10Hz)~40MHzDC (AC 10Hz)~50MHzAC coupling<10Hz (at 100kHz, 8DIV, frequency response -3dB)Rise timeApprox. 17.5nsApprox. 8.75nsApprox. 7nsInput impedanceApprox. 1MΩ//Approx. 25pFDC balance shift5mV~5V/DIV: ±0.5DIVVertical modeCH1, CH2, DUAL (ALT/CHOP), ADD, CH2 INVChopping repetition frequencyApprox. 250kHzInput couplingAC, GND, DCMax. Input voltage400V peak-peak, AC frequency≤1kHzCommon mode rejection ratio>50:1 at 50kHz sine wave (set CH1 and CH2 at same sensitivity)CH2 INV BALBalanced point variation≤1DIV (referred to graticule center)Horizontal systemSweep time0.2us~0.5s/DIV, 20 steps in 1-2-5 sequenceAccuracy±3%, X10MAG: ±5% (20ns~50ns/DIV uncalibrated)Vernier sweep time control≤1/2.5 of panel indicated valueSweep magnificationX10 (fastest sweep time 20ns/DIV)Position shift@X10MAG≤2DIV at CRT screen centerLinearity±5%, X10MAG: ±10% (0.2s~1us)Trigger systemTrigger modeAUTO, NORM, TV-V, TV-HTrigger level lockNot providedTrigger sourceCH1, CH2, ALT, LINE, EXTTrigger couplingAC: 20Hz to full bandwidthTrigger slope"+" or "-"SensitivityFrequency20Hz~2MHz2MHz~20MHz20MHz~40MHz40MHz~50MHzCH1, CH21DIV1.5DIV2.5DIV3DIVALT2DIV3DIVEXT200mV800mVTVSync pulse>1DIV (EXT: 1V)External trigger inputInput impedanceApprox. 1MΩ//Approx. 25pFMax. input voltage400V (DC+AC peak), AC frequency≤1kHzX-Y modeSensitivity5mV~5V/DIV±3%X-axis bandwidthDC~500kHz (-3dB)Phase error≤3° at DC~50kHzCalibration signal outputWaveformPositive-going square waveFrequencyApprox. 1kHzDuty ratio<48:52Output voltage2Vpp±2%Output impedanceApprox. 1kΩFrequency counter (only for TOS-2020CF, TOS-2040CF, TOS-2050CF)Display6 digits LEDAccuracy±0.01%Component test (only for TOS-2020CT, TOS-2040CT, TOS-2050CT)Testing subjectResistor, Capacitor, Coil, Diode, Zener or simple combination of the componentsTesting voltageApprox. 9Vac ppTesting frequency50/60HzTesting currentApprox. 0.6mACRTType6-inch rectangular with internal graticule, 8x10DIV (1DIV=1cm)PhosphorP31Accelerating voltageApprox. 2kV (20MHz); Approx. 12kV (40MHz)Trace rotationAdjustable at front panelGeneralPower sourceAC110V/220V±10%, 50/60Hz, Max. 35VAAccessoriesPower cord x1, Operation manual x1, Probe x2Dimension (WxHxD)310x150x455mmWeightApprox. 8kg
Selection GuideModelTOS-2020BCH
TOS-2040BCH
TOS-2050BCHTOS-2020CF
TOS-2040CF
TOS-2050CFTOS-2020CT
TOS-2040CT
TOS-2050CTTOS-2020
TOS-2040
TOS-2050TOS-2020FG
TOS-2040FG
TOS-2050FGTOS-2100CMax. bandwidth20/40/50MHz20/40/50MHz20/40/50MHz20/40/50MHz20/40/50MHz100MHzAttenuator switch√√√√√Vertical encoder switchVertical pulse switch√Vertical sensitivity step101010101011High vertical sensitivity5mV/DIV5mV/DIV5mV/DIV5mV/DIV5mV/DIV2mV/DIVLow vertical sensitivity5V/DIV5V/DIV5V/DIV5V/DIV5V/DIV5V/DIVSweep encoder switch√√√√√Sweep pulse switch√Sweep time base step202020202022Fastest sweep time0.2us0.2us0.2us0.2us0.2us50nsSlowest sweep time0.5s0.5s0.5s0.5s0.5s0.5sDual sweep (Dual time base)√Time base step auto-shift√Trigger signal output√CH1 signal output√√Z-axis input√√√Trigger level lock√√Frequency counter√√Cursor readout√Panel settings save & recall√CRT illumination√Delayed sweep√Component test√