DIY 12V 110Ah Battery Bank Load Testing Kerry Wong 2026-09-21 | DIY 12V 110Ah Battery Bank Load Testing
Micsig STO1004 100 MHz 4 Channel Smart Tablet Oscilloscope Review - Its Amazing! Kerry Wong 2022-11-15 | In this video, I reviewed a Micsig STO1004 tablet oscilloscope and demonstrated its capabilities. This is a powerful 4 channel scope taking the form of a tablet computer. It has 70 Mpts memory depth, supports waveform capture rate up to 130,000 wfms/s and has a maximum 1GSa/s sampling rate. It also supports intensity grading display, protocol decoding. Micsig STO1004: saelig.com/micsig/sto1004.htmOther Micsig products: saelig.com/miva/merchant.mvc?Screen=CTGY&Category_code=micsig 00:00 Introduction, specifications and features06:23 Power on, power off, probes09:23 Basic features walk-through, user interface15:42 Intensity grading/color temperature, AM signal measurement18:26 Lissajous figure19:24 Mathematics functions20:37 Reference waveforms21:51 Protocol decoding25:41 Other apps/PC connectivity/system update/screen recording31:14 Bandwidth testing with HP 8642B, single channel vs multiple channels 39:39 Bandwidth measurement using Avalanche pulse generator42:42 Conclusion
Review of an InfiRay XTherm II T2S+ Thermal Imager Kerry Wong 2022-10-09 | In this video, I reviewed an InfiRay XTherm II T2S+ thermal camera. The T2S+ works with Android phone and offers a thermal resolution of 256x192. It has an adjustable focus macro lens, making it suitable for closeups inspections such as working with electronics. Product links:US: amazon.com/dp/B0B5G7DMNJ?ref=myi_title_dp CA: amazon.ca/dp/B0B2BTK9FV?ref=myi_title_dp UK: amazon.co.uk/dp/B0B5G7DMNJ?ref=myi_title_dp Pergear: pergear.com/products/infiray-t2s-plus 00:00 Overview02:23 Specifications04:35 Accessories06:00 Camera mount07:48 Android software10:51 Examining an Arduino board13:58 Examining a switching power supply15:04 Pouring hot water into cold water15:49 Thermal image of hand on table16:08 Some additional pictures and videosUni-T UTi85A Review: youtu.be/DiL_TDNVjPQReview of a UNI-T UTi690B/UTi260B Thermal Imager: youtu.be/iX1wFkYdpy8InfiSense P2 Thermal Imager Review: youtu.be/ZIVr5Bf2zPk
Review/Teardown of a Hantek 1833C LCR Meter Kerry Wong 2022-10-02 | In this video I did a review and teardown of the Hantek 1833C handheld LCR meter. Product link: https://ban.ggood.vip/12DAR Teardown pictures: http://www.kerrywong.com/2022/10/02/teardown-pictures-of-a-hantek-1833c-lcr-meter00:00 Introduction03:05 Powering up, Menus, Series and Parallel Modes06:41 Resistance Mode 09:01 Comparison Mode10:32 Capacitance Mode, Guarding13:52 Inductance Mode, Min/Max/Average16:45 System Menu/Firmware Version17:13 Standby/Operating Current 18:14 SCPI Command/PC Software18:55 Teardown and ConclusionAgilent U1731B LCR Meter Serial/Parallel Mode, Guarding Explanation and Teardown: youtu.be/AmR_xmt3ABIGuarding Explained: youtu.be/45x-wDiHhOYHantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/NwT3XI2rf84Teardown of a Hantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG: youtu.be/js8G1dcPwKYHantek 2D72 vs. OWON HD272S – Which Scopemeter is Better?: youtu.be/DTC1h2PWC8g
Review of a Micsig DP750 100 MHz High Voltage Differential Probe Kerry Wong 2022-09-25 | In this video I reviewed and tested a Micsig DP750-100 high voltage differential probe. Product link: saelig.com/micsig/dp750.htm00:00 Introduction01:43 Specs/Accessories, Compared to DP1000 series05:20 Measurements using the DP750-100 Probe.08:05 Bandwidth/Noise, Side-by-side Comparison with DP100139/26/2022 correction: According to the updated product specification, the CMRR has been revised to:80dB(DC)60dB(100kHz)40dB(1MHz)Review of a Micsig DP10013 HV Differential Probe: youtu.be/B0r7wKKkxcI
Review/Teardown of an SG-003A Multi-Functional Signal Generator/Process Meter Kerry Wong 2022-09-19 | In this video, I reviewed a FNIRSI/RIIAI SG-003A muti-functional signal generator/process meter/loop calibrator. It is surprisingly quite a capable device. It has current sourcing and sinking capability and can also be used to generate and measure voltages. I demonstrated a few key features in the video followed by a teardown. Product link: amazon.com/Generator-Riiai-Adjustable-Simulator-Rechargeable/dp/B0B425J18LCoupon: 06D8MOQM valid till 10/19/2300:00 Overview06:59 Current Source09:23 Voltage Source12:28 Current Sink. Loop Measurement13:18 Voltage Measurement14:04 24v Output 15:45 Signal Generator/Frequency Output17:03 Signal Conversion19:23 PWM Signal Output20:04 Teardown24:33 Conclusions
Review of a UNI-T UTi690B/UTi260B Thermal Imager Kerry Wong 2022-09-04 | In this video I reviewed a UNI-t UTi690B thermal imager. Spec-wise, it is identical to the UTi260B (thermal resolution 256x192) in the same series as the UTi85A I reviewed a while back. Product link: https://ban.ggood.vip/12vf7UNI-T UTi85A – a Surprisingly Capable Entry-Level Thermal Imager for Electronics Work: youtu.be/DiL_TDNVjPQTiny But Powerful! Review of an InfiSense P2 Thermal Imager: youtu.be/ZIVr5Bf2zPkMore from Banggood:Fans Day Calendar https://ban.ggood.vip/12v0jBanggood Fans Day https://ban.ggood.vip/12v0kSaver Deposit Sale https://ban.ggood.vip/12v0l
Boeing 787 QF7 Takeoff from Sydney International Airport, Stunning View of the City, Opera House Kerry Wong 2022-08-29 | This video was taken on 8/13/22 on Qantas flight QF7 (AA7308) Boeing 787-9 Dreamliner from Sydney international airport (SYD) to Dallas Fort Worth (DFW). The viewpoint is from seat 7F. The plane taxied from terminal 1 gate 8 and took off via runway 34L. You can see the stunning view of the city, the opera house and the harbor bridge.00:00 Flight Information01:19 Taxiing02:08 Approaching Runway 34L04:00 Takeoff06:08 Downtown Sydney, Opera House, Sydney Harbor Bridge08:00 Stunning Clouds
A Lock Picking Lawyer Moment Kerry Wong 2022-08-01 | The title explains it all :-)The Lock Picking Lawyer: youtube.com/c/lockpickinglawyer
Review of a Micsig DP10013 HV Differential Probe Kerry Wong 2022-07-01 | Here I reviewed a Micsig DP10013 100 MHz high voltage differential probe for oscilloscopes. Product link: https://ban.ggood.vip/127pX
Review/Teardown of a FNIRSI 1014D DSO - 100 MHz or 30 MHz Bandwidth? Kerry Wong 2022-06-05 | By popular request, I did a review and teardown of a FNIRSI 1014D digital storage oscilloscope. You can also find the exact same scope under the Yeapook brand (ADS1014D). Although it is advertised as a 100MHz bandwidth scope, in reality the bandwidth is just at around 30MHz. This along with other issues (e.g. low memory depth, low input sensitivity, display artifacts, etc.) makes it hard to justify getting this scope even with the rock bottom price.00:00 Introduction02:45 Functional testing06:10 Bandwidth measurements11:31 Rise time testing12:17 AM/FM modulation, Lissajous figure13:11 Builtin function generator14:49 Teardown16:25 Conclusions
Another Look at the NanoVNA SAA-2N Kerry Wong 2022-05-01 | I finally got the short calibration connector for the NanoVNA SAA-2N, so I gave it a quick test using the same MIMO panel antenna I tested other nanoVNAs with.Product link: https://ban.ggood.vip/11peX coupon code:BG2ab9c9 ($95.99)exp:5.3100:00 Introduction01:39 SOLT Full Calibration Procedures06:54 Makeshift Short Connector versus Stock Short Connector08:35 MIMO Panel Antenna Measurements11:52 ConclusionsNanoVNA SAA-2N Teardown: youtu.be/OCZuQcUr1hkReview, Experiments and Teardown of a LiteVNA Vector Network Analyzer: youtu.be/0xxNgttJlzMTeardown, Analysis of a Waveform 600 MHz to 6 GHz Cross-Polarized 4x4 MIMO Panel Antenna: youtu.be/tc-49EuBQ9A
UNI-T UT61E+ True RMS Multimeter One Year On Kerry Wong 2022-04-24 | I have been using the UT61E+ as my primary multimeter for more than a year now and in this video I will discuss what I like and dislike about this meter. All in all it's an excellent meter to have.UNI-T UT61E+ True RMS Multimeter Review and Teardown: youtu.be/m23jIF8ve6IQuick Demo of UNI-T UT61E+'s Bi-directional USB Data Link: youtu.be/aG7u8poit58
NanoVNA SAA-2N Teardown Kerry Wong 2022-04-03 | In this video, I did a comprehensive teardown of a S-A-A-2 NanoVNA (50kHz - 3GHz). Since the design of the S-A-A-2 is open-sourced, you can easily identify all the sub-circuits. You can get one from https://ban.ggood.vip/11peX High resolution pictures can be found at http://www.kerrywong.com/2022/04/03/nanovna-saa-2n-teardown-picturescoupon code:BG2ab9c9 ($95.99)exp:5.3100:00 Introduction06:27 Teardown
Review, Experiments and Teardown of a LiteVNA Vector Network Analyzer Kerry Wong 2022-03-22 | In this video I did a review of a LiteVNA vector network analyzer along with some experiments followed by a teardown. You can get one from https://ban.ggood.vip/11ekm High resolution teardown pictures are at http://www.kerrywong.com/2022/03/22/teardown-of-a-litevna-vector-network-analyzerAdditional links:Saving Tips https://ban.ggood.vip/11dgJSpring Trendy Sale https://ban.ggood.vip/11dgR3 in 1 Oscilloscope New Releases https://ban.ggood.vip/11jC7Digital Electronics Sale https://ban.ggood.vip/11jC900:00 Introduction, specifications03:57 Features, accessories05:00 600MHz-6GHz MIMO antenna measurements10:57 GPS patch antenna measurements12:05 Teardown, conclusions
100 MHz Or 125 MHz? Further Investigation of OWON HDS2102S 2ns/div Timebase Kerry Wong 2022-03-12 | It appears that OWON HDS2102S' 2ns/div timebase is actually 2.5ns/div. I can confirm that besides this display issue everything else seems to be working properly. Hopefully, OWON can release a firmware update and fix this issue.
Review/Teardown of a DH30 Spot Welder Kerry Wong 2022-03-06 | Here I did a review and teardown of a battery powered DH-30 spot welder. Compared to the DH-20 I reviewed a while back the DH-30 has a few noticeable improvements in terms of welding waveforms and welding duration. Product link: amazon.com/Faiuot-Upgraded-Portable-Adjustable-Equipment/dp/B09PYPYNQF00:00 Overview04:15 Demonstration06:38 Welding current measurements08:10 Welding waveform measurements10:57 Teardown How Does a Spot Welder Work? Review, Teardown and Analysis of a BIFRC DH20 Battery Spot Welder: youtu.be/hObbKlGUnSM
Tiny But Powerful! Review of an InfiSense P2 Thermal Imager Kerry Wong 2022-02-28 | Here, I reviewed an InfiSense P2 thermal imager sensor which can be used with an Android phone and It boasts an impressive thermal resolution of 256x192. The same sensor is also sold under the brand name InfiRay: https://ban.ggood.vip/113IE Coupon code included below:Normal Price: $299.99Coupon Price: $239.99Coupon : BGdf506c Warehouse: CNEXP: 3.31 00:00 Introduction, specifications05:56 Accessories07:00 Using the thermal imager with Android phone. Features walk through.15:12 Videos/pictures taken with the thermal imager.17:41 ConclusionUni-T UTi85A Review: youtu.be/DiL_TDNVjPQReview of a UNI-T UTi690B/UTi260B Thermal Imager: youtu.be/iX1wFkYdpy8Saving Tips https://ban.ggood.vip/11dgJSpring Trendy Sale https://ban.ggood.vip/11dgRCoupon Deals https://ban.ggood.vip/11dgTSaver Deposit Sale https://ban.ggood.vip/11dgU
Teardown, Analysis of a Waveform 600 MHz to 6 GHz Cross-Polarized 4x4 MIMO Panel Antenna Kerry Wong 2022-02-19 | In this video, I did a teardown of Waveform 600 MHz to 6 GHz ultra-wide-band (UWB) cross-polarized 4x4 MIMO antenna (ANT660) and did some analysis on it. You can read more on my blog post here: http://www.kerrywong.com/2022/02/18/teardown-of-a-waveform-600-mhz-to-6-ghz-cross-polarized-4x4-mimo-panel-antennaYou can find this panel antenna on Waveform's website: waveform.com/products/4x4-mimo-panel-kit00:00 Introduction02:17 Teardown and analysis13:01 Testing with NanoVNATeardown of a RSRF cross-polarized dual band cellular MIMO panel antenna :youtu.be/vm4hV1ITrp0RSRF Cross-Polarized Dual Band Cellular MIMO Antenna Measured with a NanoVNA :youtu.be/fuv-NbGkfro
The Best Gets Even Better! OWON HDS2102S 100MHz OSC/DMM/AWG Review/Teardown, Compared to HDS272S Kerry Wong 2022-02-11 | In this video, I did a review and teardown of OWON's latest scope meter, the HDS2102S, a 3-in-1 (Oscilloscope/DMM/AWG) 100MHz bandwidth handheld oscilloscope in OWON's HDS200 series and compared its performance against the HDS272S . Product link: https://ban.ggood.vip/10ZhXHigh resolution teardown pictures at http://www.kerrywong.com/2022/02/06/teardown-pictures-of-the-owon-hds2102s-oscilloscope-dmm-awg-compared-to-the-hds272sBe sure to check out the review videos for the HDS272S as most of the functionalities (e.g. DMM/AWG) are identical to the HDS2102S:OWON HDS272S Review: youtu.be/AFxSrieoI64OWON HDS272S Teardown: youtu.be/lbvqnWPC6iQHDS272S Vs. 2D72: youtu.be/DTC1h2PWC8g00:00 Introduction, specs comparison 04:31 Powering up, signal acquisition comparison08:52 Lissajous figure comparison09:40 Bandwidth testing of the HDS2102S, single channel mode14:39 Bandwidth testing of the HDS2102S, dual channel mode17:39 Bandwidth testing of the HDS272S, single channel mode20:00 Bandwidth testing of the HDS272S, dual channel mode21:33 Power consumption23:52 Teardown, comparison28:38 Conclusion
NanoVNA-F V2 Firmware Update, Clarifications on Signal Generator Output Frequency Accuracy Kerry Wong 2022-01-22 | I demonstrated the firmware update procedure and also clarified some viewer questions regarding the RF output frequency accuracy of the NanoVNA-F V2.Review, Experiments and Teardown of a NanoVNA-F V2 Vector Network Analyzer: youtu.be/dOnhdWGvz7kRSRF Cross-Polarized Dual Band Cellular MIMO Antenna Measured with a NanoVNA: youtu.be/fuv-NbGkfroNanoVNA-F V2: https://ban.ggood.vip/10GYz
RSRF Cross-Polarized Dual Band Cellular MIMO Antenna Measured with a NanoVNA Kerry Wong 2022-01-15 | I did a teardown of a RSRF cross-polarized dual band cellular MIMO panel antenna a while back (youtu.be/vm4hV1ITrp0) and here I used my NanoVNA-F V2 and measured its frequency characteristics and tested out its cross polarization isolation. 00:00 Overview01:34 Full frequency band sweep 04:00 Cross polarization isolation measurements05:29 Individual frequency band sweep08:27 ConclusionReview, Experiments and Teardown of a NanoVNA-F V2 Vector Network Analyzer: youtu.be/dOnhdWGvz7kNanoVNA-F V2: https://ban.ggood.vip/10GYz
Review, Experiments and Teardown of a NanoVNA-F V2 Vector Network Analyzer Kerry Wong 2022-01-07 | In this video I did a review of a NanoVNA-F V2 vector network analyzer along with some experiments followed by a teardown. You can get one from https://ban.ggood.vip/10GYz High resolution teardown pictures are at http://www.kerrywong.com/2022/01/07/teardown-of-a-nanovna-f-v2-vector-network-analyzer00:00 Background info06:25 Powering on, menu system07:32 Measuring whip antennas (single band and dual band)15:12 L/C measurements, Smith chart17:20 S21 measurement18:34 Sweep output flatness, signal output quality24:28 Teardown33:57 Conclusions
How Does a Spot Welder Work? Review, Teardown and Analysis of a BIFRC DH20 Battery Spot Welder Kerry Wong 2021-12-10 | In this video, I discussed the principle of operation of the BIFRC DH20 spot welder and demonstrated its capabilities. I also did a teardown and analysis of the unit. Product link: https://ban.ggood.vip/10GYB00:00 Overview04:59 Welding test with different settings/tips08:22 Principle of operation12:20 Output waveforms15:52 Welding current measurement19:13 Teardown 22:12 ConclusionMore teardown pictures of the DH20:http://www.kerrywong.com/2021/12/10/how-does-a-spot-welder-work-review-teardown-and-analysis-of-a-bifrc-dh20-battery-spot-welderMy MOT spot welder build:http://www.kerrywong.com/2017/06/18/dual-purpose-spot-welder-with-pulse-duration-controlBattery bank build using my MOT spot welder:http://www.kerrywong.com/2017/09/22/building-a-12v-110ah-battery-bank-using-80-32650-lifepo4-cellsMore links from Banggood:Clearance sales bit.ly/30fp4MRTools & Electronics sales: bit.ly/3caNiK9New arrivals: bit.ly/3HhsQG7
UNI-T UTi85A – a Surprisingly Capable Entry-Level Thermal Imager for Electronics Work Kerry Wong 2021-11-20 | UNI-T UTi85A is the lowest priced model in the UNI-T PRO series thermal imagers/cameras. It’s fast boot-up time and close focus range more than make up for its limited IR resolution and making it a great choice as an entry-level thermal imager for electronics work. Product link: https://ban.ggood.vip/10nn1 Discount code: BG4d00e8 EXP 12/31More links from Banggood:Black Friday Deals 2021 bit.ly/3qvIckfClearance sales bit.ly/30fp4MRTools & Electronics sales: bit.ly/3caNiK9New arrivals: bit.ly/3HhsQG7
Review and Teardown of a HoldPeak HP-770D 40,000 Counts True RMS Digital Multimeter Kerry Wong 2021-11-05 | This is a review/teardown video of a HoldPeak HP-770D DMM. If you are interested you can get one from https://ban.ggood.vip/10nmZ Specs and teardown pictures can be found at http://www.kerrywong.com/2021/11/05/review-teardown-of-a-holdpeak-hp-770d-40000-counts-true-rms-multimeter00:00 Introduction, input jack design04:05 Automatic back light, range switch05:00 DC voltage measurement09:39 Bar graph display speed11:35 AC voltage measurement12:36 Ohm/diode/capacitance/continuity measurements16:47 Frequency measurement19:14 NCV/temperature/hFE measurements22:05 Current measurement, burden voltage24:37 Current consumption measurement25:28 Teardown29:45 ConclusionsDouble 11 Shopping Festival bit.ly/3q5NcfiClearance sale bit.ly/2ZSNlaVGrab Money Saving Tips bit.ly/2ZLR5eaSaver Deposit Sale & Deals bit.ly/2ZLR5ea
Slow Timebase Performance Comparison: Hantek 2D72 Vs. OWON HD272S Kerry Wong 2021-10-02 | This follow-up video compares the slow timebase performance of the two popular scopemeters. There are some key implementation differences between the Hantek 2D72 and OWON HDS272S. I also discussed some of the limitations of these scopemeters have in common due to the relatively short memory depth.Hantek 2D72 vs. OWON HD272S – Which Scopemeter is Better? youtu.be/DTC1h2PWC8gOWON HDS272S 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/AFxSrieoI64Teardown of OWON HDS272S 3-in-1 Oscilloscope/DMM/AWG: youtu.be/lbvqnWPC6iQHantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/NwT3XI2rf84Teardown of a Hantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG: youtu.be/js8G1dcPwKY
Hantek 2D72 vs. OWON HD272S – Which Scopemeter is Better? Kerry Wong 2021-09-25 | I did a detailed side by side comparison between the Hantek 2D72 and OWON HDS272S. Both of the Hantek 2000 series and OWON HDS200 series offer comparable specifications. After watching this video you should be able to decide which one better fits your needs.00:00 Introduction01:36 Specification comparison07:41 Power consumption comparison12:43 USB-C port, probe compensation test point13:50 Power-on power-off performance comparison14:35 Update rate comparisons15:54 Automatic acquisition speed, bandwidth comparison21:03 AM/FM signals24:12 X-Y mode comparison, Lissajous figure26:42 Digital Multimeter comparison29:36 Arbitrary waveform generator comparison 34:34 ConclusionOWON HDS272S: https://ban.ggood.vip/ZMZx Hantek 2D72: https://ban.ggood.vip/YLFnOWON HDS2102S 100MHz OSC/DMM/AWG Review/Teardown, Compared to HDS272S: youtu.be/CF3zBHMhQlMOWON HDS272S 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/AFxSrieoI64Teardown of OWON HDS272S 3-in-1 Oscilloscope/DMM/AWG: youtu.be/lbvqnWPC6iQHantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/NwT3XI2rf84Teardown of a Hantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG: youtu.be/js8G1dcPwKYSlow Timebase Performance Comparison: Hantek 2D72 Vs. OWON HD272S: youtu.be/8uGYJQBwtig
Teardown of OWON HDS272S 3-in-1 Oscilloscope/DMM/AWG - How Does it Compare to the Hantek 2D72? Kerry Wong 2021-09-18 | In this video, I did a detailed teardown of the OWON HDS272S 3-in-1 handheld oscilloscope/digital multimeter/arbitrary waveform generator and compared to the teardown I did with the Hantek 2D72. High-res teardown pictures can be found at http://www.kerrywong.com/2021/09/18/teardown-of-an-owon-hds272s-3-in-1-handheld-oscilloscope-dmm-awg-compared-with-hantek-2d72Hantek 2D72 vs. OWON HD272S – Which Scopemeter is Better? youtu.be/DTC1h2PWC8gOWON HDS272S 3-in-1 Handheld Oscilloscope/DMM/AWG Review - The Oscilloscope is Very Impressive!: youtu.be/AFxSrieoI64Hantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/NwT3XI2rf84Teardown of a Hantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG: youtu.be/js8G1dcPwKYSlow Timebase Performance Comparison: Hantek 2D72 Vs. OWON HD272S: youtu.be/8uGYJQBwtig
OWON HDS272S 3-in-1 Handheld Oscilloscope/DMM/AWG Review - The Oscilloscope is Very Impressive! Kerry Wong 2021-09-10 | This is a in-depth review of the OWN HDS272S 3 in 1 (HDS200 series) Oscilloscope/Multimeter/Arbitrary Waveform Generator combo. You can get one here: https://ban.ggood.vip/ZMZx OWON HDS2102S 100MHz OSC/DMM/AWG Review/Teardown, Compared to HDS272S: youtu.be/CF3zBHMhQlMTeardown of the HDS272S: youtu.be/lbvqnWPC6iQ00:00 Introduction03:25 Power-on/Probe compensation/Factory default05:52 Oscilloscope walk-through12:43 X-Y mode, Lissajous figure13:36 Modulated signals15:03 Bandwidth test18:44 Oscilloscope update rate, single-shot measurements20:59 Digital Multimeter walk-through29:10 Slow capacitance measurement mode36:06 Arbitrary waveform generator, PC Software42:45 ConclusionHantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/NwT3XI2rf84Teardown of a Hantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG: youtu.be/js8G1dcPwKYSlow Timebase Performance Comparison: Hantek 2D72 Vs. OWON HD272S: youtu.be/8uGYJQBwtigHantek 2D72 vs. OWON HD272S – Which Scopemeter is Better? youtu.be/DTC1h2PWC8gAdditional promotional links:Banggood 15th Anniversary Sale 2021: bit.ly/3mS7lnhCoupon Deals With Great Discounts bit.ly/3DEP6YITools, Electronics Sale bit.ly/3BtH96s
Review/Teardown of a Hantek DSO2D10 Oscilloscope - It Has Builtin AWG, Does Protocol Decoding Too! Kerry Wong 2021-08-14 | I did a detailed review and teardown of a Hantek DSO2D10 oscilloscope. Check it out on Banggood: https://ban.ggood.vip/Zu2N use coupon code BGd2e0cc for additional savings (expires on 9/30).00:00 Introduction03:10 Power on time, features05:08 Test signal06:26 System information, it’s Linux based!07:50 Arbitrary waveform generator, AM/FM modulation12:23 Waveform editor software 15:30 Keysight Interactive IO, SCPI16:46 Virtual Oscilloscope software17:28 Memory depth20:45 Protocol decoding, triggering capability24:22 Bandwidth testing27:31 Rise time measurement29:15 X-Y Mode, DVM30:58 Teardown36:19 ConclusionTeardown pictures: http://www.kerrywong.com/2021/08/14/hantek-dso2d10-teardown-picturesHow to make an avalanche pulse generator: http://www.kerrywong.com/2013/05/18/avalanche-pulse-generator-build-using-2n3904
Semiconductor Curve Tracing Using Function Generator/AWG Kerry Wong 2021-08-01 | Here I showed a couple of methods to implement a curve tracer using Function generator/AWG. 00:00 Introduction01:12 Standalone Curve Tracing Circuitry01:45 Method One 03:06 Method Two05:26 Measurement Setup with Method One07:43 NPN transistor Curve Tracing/Parameters Adjustment13:25 N-Channel MOSFET Characteristics Curve14:28 NPN transistor Characteristics Curve using Method Two/ConclusionIf you wanted to build a stand-alone curve tracer, you can check out the article I wrote a while back:http://www.kerrywong.com/2013/09/02/yet-another-semiconductor-vi-curve-tracerhttp://www.kerrywong.com/2013/09/09/yet-another-semiconductor-vi-curve-tracer-iiHere are a couple of review videos of the Function Generator/AWG used in this video:UNI-T UTG962E: youtu.be/ORkJGdViAhgHantek 2D72: youtu.be/NwT3XI2rf84
Teardown of an RSRF Cross-Polarized Dual Band Cellular MIMO Panel Antenna Kerry Wong 2021-07-17 | I did a teardown of a dual-band orthogonally polarized MIMO antenna and explained the operation principals. You can read more on my blog post here: http://www.kerrywong.com/2021/07/17/teardown-of-an-rsrf-cross-polarized-dual-band-cellular-mimo-panel-antennaThe antenna used in this video can be found here: waveform.com/products/mimo-outdoor-panel-antenna
Extreme Teardown of a Cel-Fi Go X Cell Phone Signal Booster Kerry Wong 2021-07-10 | I finally got my hands on a spare Cel-Fi Go X cell phone signal booster so I could do an extreme teardown with. My original video on the Cel-Fi Go X teardown and software demonstration can be found here: youtu.be/3I7K1B60iHs. For detailed teardown pictures please check out on my website: http://www.kerrywong.com/2021/07/10/cel-fi-go-x-cell-signal-booster-extreme-teardown
Andonstar AD208 - Another Great Digital Microscope For Electronics Work Kerry Wong 2021-07-05 | In this video I reviewed an Andonstar AD208 8.5 inch LCD digital microscope. You can buy it directly from Andonstar: bit.ly/3vA1i7O and don't forget the $10 off coupon code: NS10
Teardown of a Hantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG Kerry Wong 2021-06-26 | I did a teardown and some analysis of the Hantek 2D72. For a thorough review of the 2D72, you can check out my previous review video (youtu.be/NwT3XI2rf84). High resolution teardown pictures can be found here: http://www.kerrywong.com/2021/06/26/teardown-of-an-hantek-2d72-3-in-1-handheld-oscilloscope-dmm-awgOWON HDS272S 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/AFxSrieoI64Teardown of OWON HDS272S 3-in-1 Oscilloscope/DMM/AWG: youtu.be/lbvqnWPC6iQHantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/NwT3XI2rf84Hantek 2D72 vs. OWON HD272S – Which Scopemeter is Better? youtu.be/DTC1h2PWC8gSlow Timebase Performance Comparison: Hantek 2D72 Vs. OWON HD272S: youtu.be/8uGYJQBwtig
Hantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG Review Kerry Wong 2021-06-21 | This is a thorough review of the Hantek 2D72/2D42 3-in-1 handheld oscilloscope. It also has the digital multimeter and arbitrary waveform generator functionality built-in. You can find the 2D72 on Banggod's product page here: https://ban.ggood.vip/YLFn0:00 Introduction3:30 Oscilloscope 10:33 Single shot capability13:30 Oscilloscope bandwidth measurement16:54 Modulated signal measurement18:40 Lissajous figure19:23 Multimeter28:03 Arbitrary waveform generator37:43 Spectral purity comparisonAdditional promotional links on Banggood:Saving tips: bit.ly/3zQnduTSummer Prime Sale: bit.ly/3qemWgFNew arrivals: bit.ly/3xH8AbnHere is a link for the teardown video: youtu.be/js8G1dcPwKYOWON HDS272S 3-in-1 Handheld Oscilloscope/DMM/AWG Review: youtu.be/AFxSrieoI64Teardown of OWON HDS272S 3-in-1 Oscilloscope/DMM/AWG: youtu.be/lbvqnWPC6iQHantek 2D72 vs. OWON HD272S – Which Scopemeter is Better? youtu.be/DTC1h2PWC8gSlow Timebase Performance Comparison: Hantek 2D72 Vs. OWON HD272S: youtu.be/8uGYJQBwtig
Design Fail - Trying to Solve a Problem that Did Not Exist at the First Place - DT71 Repair Kerry Wong 2021-06-14 | Miniware seemed to have over engineered the DT71 digital tweezers by over emphasizing on the physical size over the reliability of the unit. My DT71 failed after just a few weeks of casual use. In this video you will see the failure mode in this video and how I fixed it.
Review and Teardown of a Topshak LW-3010EC Programmable Power Supply Kerry Wong 2021-05-28 | In this video, I took a look at a Topshak LW-3010EC programmable power supply. The main switching power supply board seems to be common among many brands on the market. This power supply is currently on sale at: https://ban.ggood.vip/Yrfs For high resolution teardown photos and comparisons please check out my website: http://www.kerrywong.com/2021/05/28/teardown-of-an-lw-3010ec-programmable-power-supplyYou can check out the links below for other electronics that are currently on sale at Banggood: bit.ly/3yuNQVabit.ly/340kekP00:00 - Introduction04:05 - Load Testing11:45 - Power On Characteristics and Ripple12:58 - OCP characteristics15:42 - Teardown19:56 - Conclusion
MUSTOOL G1200 Review - A Great Budget Digital Miscroscope for Circuit Work Kerry Wong 2021-05-22 | In this video, I reviewed a budget MUSTOOL G1200 (12 Meg-pixel) digital microscope. I was quite impressed by the image quality and the wide focusing range it offers considering the price. It is current on sale at: https://ban.ggood.vip/YrfqYou can check out the links below for other electronics that are currently on sale at Banggood: bit.ly/3yuNQVabit.ly/340kekP
Which One to Get? UT61E+ and AN870 Side-by-Side Kerry Wong 2021-05-01 | In this video, I did a side by side comparison between UNI-T's new UT61E+ 22,000 count multimeter and ANENG's 19,999 count AN870 to help you choose which one fits your need. My in-depth reviews and teardown of these two meters can be found here: UT61E+: youtu.be/m23jIF8ve6IAN870: youtu.be/L-DDvLbUukw
Quick Demo of UNI-T UT61E+s Bi-directional USB Data Link Kerry Wong 2021-04-23 | In this video, I tested UT61E+'s bi-directional USB data communication capability using the supplied software. You can check out my review and teardown here: http://www.kerrywong.com/2021/04/04/teardown-of-a-uni-t-ut61e-true-rms-multimeter and here: youtu.be/m23jIF8ve6I
Miniware DT71 Smart Digital Tweezers Review Kerry Wong 2021-04-18 | In this video, I reviewed Miniware's DT71 smart SMD digital tweezers and tested out the functionalities. The DT71 can also store an arbitrary waveform, which comes in handy. You can find these tweezers at https://ban.ggood.vip/XGAk00:00 Intro/Design/Firmware update06:30 Resistance Measurements08:35 Voltage Measurements09:20 Diode Measurements10:18 Capacitance Measurements13:04 Inductance Measurements14:50 Frequency Measurements15:49 In-circuit Measurements19:41 Auto-identification Mode21:37 Signal/Arbitrary Waveform Generator23:24 Conclusion
ANENG AN870 19,999 Count True RMS Multimeter Review and Teardown Kerry Wong 2021-04-11 | In this video, I did a review and teardown of an ANENG AN870 19,999 count true RMS multimeter. You can find this meter on Banggood's website here: bit.ly/3m44y8j00:00 Introduction/Overview04:37 Range Switch/Display05:23 AC Measurements05:53 DC Volt Measurements07:00 DC mV Range10:32 DC mV Range Compared with a Keithley 19612:39 Ohm/Continuity/Capacitance/Diode Measurements16:09 Frequency Measurements18:23 Current Measurements21:00 NCV Tests22:07 TeardownSome of the test equipment and electronics are currently on sale at Banggod: bit.ly/39UxSsRHere is a a link to the REF200 current source I built: http://www.kerrywong.com/2013/07/13/using-ref200-as-100ua-recision-reference
UNI-T UT61E+ True RMS Multimeter Review and Teardown Kerry Wong 2021-04-04 | I did a thorough review and teardown of the new 22,000 count UNI-T UT61E+ multimeter. You can find this meter on Banggood at https://ban.ggood.vip/XGAuHigh resolution teardown pictures can be found at http://www.kerrywong.com/2021/04/04/teardown-of-a-uni-t-ut61e-true-rms-multimeter00:00 Introduction05:06 Overall design07:19 Range switch09:22 LCD display10:00 AC Voltage/Frequency LPF measurements12:17 DC measurement accuracy16:15 DC range input impedance17:23 AC+DC measurements20:15 Ohm/continuity/diode measurement range23:47 Frequency measurements26:10 Current ranges27:59 NCV measurements29:59 hFE measurements32:48 USB dongle33:37 Teardown38:51 Conclusions
Visualizing a Full Bridge Rectifier Kerry Wong 2021-03-20 | A couple of fun experiments visualizing a full bridge rectifier in action using LEDs as the full wave diode bridge and load.http://www.kerrywong.com/2021/03/20/visualizing-a-full-bridge-rectifier
Some Limitations of the UTG962E AWG and a Fun Experiment Kerry Wong 2021-03-13 | In this video, I discussed some of the limitations of the UTG962E and used it along with my HP 7044A plotter to plot some Lissajous figures. For the full review of this UNI-T arbitrary waveform generator please take a look at my previous video:youtu.be/ORkJGdViAhg. You can learn more about the 7044A here: youtu.be/pbGjEbYpNZw
Failure mode of Some Ecosmart LED Bulbs Kerry Wong 2021-03-06 | These 65W and 75W Ecosmart LED bulbs boast up to 22 years of service life and offer a 5 year warranty but failed within just over one year. The cause seems to be the failure of one of the chip LEDs in series.Teardown of a Cree LED Light Bulb: youtube.com/watch?v=2Vm27xL57O0Teardown of a Philips Dimmable LED Bulb: youtube.com/watch?v=ntOHsebZTVUTeardown of an Ecosmart 60W Dimmable G16.5 LED Bulb: youtube.com/watch?v=AcPgMlaHzC8
Review and Teardown of a Kaiweets 3010F 30V 10A Lab Power Supply Kerry Wong 2021-02-27 | In this video, I did a review and teardown of a Kaiweets 3010F Power Supply. You can get this PS from amazon.com/dp/B085S34NNW00:00 - Intro01:50 - Voltage setting accuracy06:00 - Current setting accuracy08:48 - Load testing15:05 - Power-on characteristics17:30 - Ripple19:55 - Teardown
RD6012W Power Supply Build Using Power Bricks - Putting Everything Together Kerry Wong 2021-02-20 | This is a follow up to my previous video on building a RD6012W based power supply using power bricks (youtu.be/4Sg0cf8-hFM). Will the case block the onboard WIFI module signal? You will find out towards the end.
UNI-T UTG962E Function/Arbitrary Waveform Generator Review, Teardown and Experiments Kerry Wong 2021-02-13 | In this video, I did an in-depth review, teardown and testing of the UNI-T UTG962 AWG. If you are interested in getting one, you can find it here: http://bit.ly/3a1F8Ct Here are the sections included in this video:Intro: youtu.be/ORkJGdViAhgBasic features: youtu.be/ORkJGdViAhg?t=271Modulation: youtu.be/ORkJGdViAhg?t=573Spectrum Analysis: youtu.be/ORkJGdViAhg?t=742Dual channel experiments: youtu.be/ORkJGdViAhg?t=1033Frequency counter/Voltage output: youtu.be/ORkJGdViAhg?t=1201PC software: youtu.be/ORkJGdViAhg?t=1617Teardown:youtu.be/ORkJGdViAhg?t=2168
