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Kerry D. Wong

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Tag: Teardown

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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 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

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

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

September 18, 2021February 6, 2022 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

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

Cel-Fi Go X Cell Signal Booster Extreme Teardown

July 10, 2021July 11, 2021 kwong

About a year ago, I bought a Cel-Fi Go X signal booster for my house as where I live the […]

Electronics ASIC, AWB7125, AWB7222, AWB7225, B20200G, Bluetooth, CC2640, Cel-Fi, DC-DC Converter, Duplexer, FPGA, Go X, Inverted F Antenna, Nextivity, RT7272A, Teardown, UMCC, W25Q128JV, W947D2HB

Teardown of a UNI-T UT61E+ True RMS Multimeter

April 4, 2021April 5, 2021 kwong

UNI-T‘s UT61E+ is a 22,000 count true RMS multimeter. It was released towards the end of last year and is […]

Electronics CP2110, ES232, Fuse, HC32L130, HY2613B, Metal Oxide Varistor, MOV, NTC, Teardown, UNI-T, UT161E, UT61E, UT61E+

Teardown and Testing of a 1500W Pure Sine Inverter

January 30, 2021January 31, 2021 kwong

A while back, I did a teardown of an 800W Reliable Electric Pure Sine inverter. In this blog post, let’s […]

Electronics 85GT33SW, CNSWIPower, FGA180N33, IGBT, Inverter, IRF1404, LiFePO4, Load Testing, Pure Sine, PureSine, STTH6006W, Teardown

Teardown of a Cel-Fi Go X Cell Signal Booster

July 5, 2020July 7, 2021 kwong

In the area where I live, the cell phone reception is spotty at the best. Even though I am only […]

Product Reviews, Teardowns ASIC, Cel-Fi, Downlink, Echo Cancellation, ETSI, FCC, Go X, IP66, Jitter, LNA, LPDA, Matched Filter, Multi-Path Fading, NEMA 4, Nextivity, PCI, Repeater, RSRP, RSRQ, RSSI, Signal Booster, SINR, Teardown, Uplink, Yagi

Teardown of a Keithley 230 Programmable Four-Quadrant Voltage Source

October 25, 2019October 1, 2022 kwong

The latest addition to my lab equipment is a Keithley 230 programmable voltage source which can output up to ±100V. […]

Electronics, Teardowns AD544, GPIB, HP-IB, IEEE-488, Keithley 196, Keithley 230, MJ15011, MJ15012, Teardown, TMS9114A, Voltage Source

Teardown of a Piezoelectric Vibrating Gyroscope

February 3, 2019February 3, 2019 kwong

Gyroscopes nowadays are based on micro-electro-mechanical systems (MEMS) technology. They are low cost and extremely miniaturized. A device combing both […]

Electronics Accelerometer, Bimorph, Coriolis Force, Coriolis Vibratory Gyroscope, CVG, ENC-03J, Gyroscope, MEMS, Piezoelectric, Teardown

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