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Kerry D. Wong

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OWON HDS2202S 3-in-1 Handheld Oscilloscope/DMM/AWG Teardown

March 30, 2023March 30, 2023 kwong

Early last year when I reviewed OWON’s HDS2102S, I was impressed as the performance of OWON’s then top of the […]

Electronics 8V97051, ADC08D1500, Arbitrary Waveform Generator, AWG, DAC904E, EG4X20BG256, GD32F303, Handheld, HDS200, HDS2102, HDS2102S, HDS2202, HDS2202S, HDS272, HDS272S, Linsi Micro, LS08D1500, Oscilloscope, OWON, Owon HDS200, SGM41521, Teardown, TLV62150

Kaiweets HT118E Teardown Pictures – Compared with HT118A

January 21, 2023January 21, 2023 kwong

A couple of years ago, I reviewed a Kaiweets HT118A multimeter. The HT118A is a 6,000 counts multimeter and this […]

Electronics

Teardown of a ToolTop ET829 Handheld Oscilloscope/DMM/AWG

January 15, 2023January 15, 2023 kwong

Over the last year, I have done teardowns of a few handheld scopemeters including a Hantek 2D72, an Owon HDS272S […]

Electronics 2D72, 74HC4051, AWG, DMM, ET202D, ET829, Function Generator, GS8092, Hantek, HDS200, HEF4052, LCMXO2-1200HC, Multimeter, MXT2088, Oscilloscope, OWON, Scopemeter, Teardown, ToolTop

Micsig STO1004 Smart Tablet Oscilloscope Teardown

November 20, 2022December 11, 2022 kwong

I did a thorough review of a Micsig STO1004 DSO last week. It is a powerful four channel scope taking […]

Electronics ADF4360, AP6181, D9D320, DSO, EXC80W32, HAD1511, ICN6211, Micsig, OPA4872, Oscilloscope, Smart Tablet Oscilloscope, STO1000, STO1004, Teardown, WM8960

Teardown Pictures of a Hantek 1833C LCR Meter

October 2, 2022October 2, 2022 kwong

A dedicated LCR meter is a luxury for many electronics hobbyists, but it is extremely useful when dealing with analog […]

Electronics 1832C, 1833C, 74HC4051, AD8052, APM32E103, ARM, Cortex M3, Geehy, Hantek, HM4052, Kelvin Sensing, LCR Meter, Review, SGM3002, Teardown, TL9062

NanoVNA SAA-2N Teardown Pictures

April 3, 2022April 3, 2022 kwong

I received yet another NanoVNA for review. This time it is a S-A-A-2 (NanoVNA V2) with N connectors instead of […]

Electronics 8641, AD8342, ADF4350, GD32F303, GS8722, HR2046, Mixer, MXD8641, NanoVNA, S-A-A-2, S-A-A-2N, SAA-2, SAA-2N, Teardown, V2, Vector Network Analyzer

Teardown of a LiteVNA Vector Network Analyzer

March 22, 2022April 3, 2022 kwong

In a previous post, I did a teardown of a NanoVNA-F V2. This time let’s take a look at a […]

Electronics 2871E, 8641, LiteVNA, MS5351M, NanoVNA, NanoVNA-F V2, Review, Teardown, TSC2046

Teardown of a Waveform 600 MHz to 6 GHz Cross-Polarized 4×4 MIMO Panel Antenna

February 18, 2022February 19, 2022 kwong

In this blog post, we will take a look at a Waveform 600 MHz to 6 GHz ultra-wide-band (UWB) cross-polarized […]

Electronics Antenna, Cross Polarization, Diversity Gain, MIMO, Mutual Coupling, Pattern Diversity, Polarization Diversity, Spatial Diversity, Waveform

Teardown Pictures of the OWON HDS2102S Oscilloscope/DMM/AWG, Compared to the HDS272S

February 11, 2022February 13, 2022 kwong

HDS2102S is the latest version in OWON’s HDS200 series 3-in-1 handheld oscilloscope. It combines a digital oscilloscope, a digital multimeter […]

Electronics Arbitrary Waveform Generator, AWG, DAC904E, Digital Multimeter, GD32F303, HAD1511, HDS2102, HDS2102S, HDS272, HDS272S, Oscilloscope, OWON, Owon HDS200, RS8414, Teardown

Teardown of a NanoVNA-F V2 Vector Network Analyzer

January 7, 2022January 15, 2022 kwong

Recently, I got my hands on a NanoVNA-F V2 made by SYSJOINT. It features a large 4.3 inch touch screen […]

Electronics GD32F103, HP8566B, IP5306, MS5351M, NanoVNA, NanoVNA-F V2, S Parameter, Scalar Network Analyzer, Scattering Matrix, Si5351, SNA, Vector Network Analyzer, VNA, XPT2046

How Does a Spot Welder Work? Review, Teardown and Analysis of a BIFRC DH20 Battery Spot Welder

December 10, 2021December 10, 2021 kwong

A while back I built a spot welder with an old microwave oven transformer (MOT). Since then, I have used […]

Electronics 4N04R8, BIFRC, DH20, IP5306, Lipo, Microwave Oven Transformer, MOT, PC357, Spot Welder, STC 15W404AS, Teardown, YXKY

Review/Teardown of a HoldPeak HP-770D 40000 Counts True RMS Multimeter

November 5, 2021November 5, 2021 kwong

HoldPeak’s HP-770D is a 40,000 counts true RMS multimeter. Price and size-wise it is very similar to UNI-T’s new UT61E+ […]

Electronics Digital Multimeter, DMM, HoldPeak, HP-770D, HT7530-1, HY11p14, HY3131, True RMS

Teardown of an OWON HDS272S 3-in-1 Handheld Oscilloscope/DMM/AWG – Compared with Hantek 2D72

September 18, 2021March 26, 2023 kwong

I recently got my hands on an OWON HDS272S, a top-of-the-line 3-in-1 handheld oscilloscope/digital multimeter/arbitrary waveform generator in OWON’s HDS200 […]

Electronics 2D72, AWG, BQ25616J, DAC904E, DMM, GD32F303, Hantek, HDS200, HDS272S, LM385-1.2, MXT2088, Oscilloscope, OWON, RS8412, Teardown, TLV62150, TP2274, UMW 1018

Hantek DSO2D10 Teardown Pictures

August 14, 2021August 14, 2021 kwong

The DSO2000 series is the latest entry-level digital storage oscilloscope from Hantek. The DSO2D10 version I reviewed (see video linked […]

Electronics 74HC4051, 74HC595, Arbitrary Waveform Generator, AWG, DAC902, DK124, DSO, DSO2000, DSO2D10, F1C200s, Hantek, LETEX LT210, LM6702, Oscilloscope

Teardown of an RSRF Cross-Polarized Dual Band Cellular MIMO Panel Antenna

July 17, 2021February 18, 2022 kwong

In this blog post, let’s take a look at a cross-polarized dual band MIMO Panel antenna that is designed for […]

Electronics Antenna, Cross Polarization, Diplexer, Distributed-Element Filter, Diversity Gain, MIMO, Multi-Path Fading, Polarization Diversity, RSRF, Spatial Diversity, Teardown

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