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Kerry D. Wong

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FNIRSI DPOX180H Teardown Pictures

September 8, 2023September 29, 2023 kwong

The FNIRSI DPOX180H is a digital phosphor dual channel handheld oscilloscope with a builtin function generator. It boasts a single […]

Electronics 74HC4051, Digital Phosper, DPOX180H, EF2L45LG144B, F1C100s, FNIRSI, FPGA, Handheld, IP2312, MS5351M, Oscilloscope, Review, RS622, SoC, Teardown

Teardown of a NanoVNA-F V3 Vector Network Analyzer, Compared to V2

September 1, 2023October 7, 2023 kwong

I reviewed a NanoVNA-F V2 vector network analyzer a while ago. V2 has a frequency range from 50 kHz to […]

Electronics ADF4350, ADL5801, AT32F-403, MAX2870, Maximum 2870E, NanoVNA, NanoVNA-F, NanoVNA-F V2, NanoVNA-F V3, Vector Network Analyzer, VNA, XPT2046

Teardown of a TS1C Cordless Soldering Station

August 11, 2023August 11, 2023 kwong

I did a review and teardown of a Miniware TS1C cordless soldering station. This soldering station is rather unique in […]

Electronics ARM, CH579M, Cortex M0, HM4805A, Miniware, Supercap, Supercapacitor, TS1C, WSD4066DN, ZigBee

ToolTop ET75 Process Meter Teardown Pictures

July 23, 2023July 23, 2023 kwong

A process meter is mainly used in industrial settings and typically for loop calibrations. It can do basic DMM measurements […]

Electronics ADC, CM052B, CM053B, Current Sink, Current Source, ET75, HT1621, HY3106, LM385, M430F5310, MSP430F5310, OPA2277, Process Calibrator, Process Meter, TL062, ToolTop, ZVNL110

Making a Tracking Generator for the tinySA Ultra Spectrum Analyzer

July 8, 2023July 8, 2023 kwong

The tinySA Ultra is quite a capable spectrum analyzer. In this blog posting, we will take a look how to […]

Electronics Double Balanced, HP 8642B, LiteVNA, Mixer, SIM-43+, tinySA, tinySA Ultra, Tracking Generator, ZFM-4-S+, ZX05-43-S+, ZX05-83-S+

tinySA Ultra Teardown Pictures

June 16, 2023June 16, 2023 kwong

tinySA Ultra is an affordable spectrum analyzer geared towards HAM radio operators, RF enthusiasts and electronic hobbyists. With the Ultra […]

Electronics ADE-25MH, ADF4350, AM, BGA2817, CS5181E, Demodulation, FM, Frequency Mixer, HP 8566B, Mixer, MMIC, Modulation, PE4312, Si4468, Spectrum Analyzer, STM32F302, tinySA, tinySA Ultra

ET5410+ Programmable DC Electronic Load Teardown Pictures

June 9, 2023June 9, 2023 kwong

MUSTOOL ET5410A+ is a single channel programmable electronic load and battery tester. It is capable of sinking up to 40A […]

Electronics 2SC2073, ARM, Battery Tester, Dummy Load, Electronic Load, GD32F303, GigaDevice, ME7660, MOSFET, MUSTOOL, Teardown, TL072

Teardown Pictures of a Zotek ZOYI ZT-702S Handheld Oscilloscope

May 26, 2023May 27, 2023 kwong

I got my hands on a recently released Zotek ZOYI ZT-702S handheld digital oscilloscope. It is a combination of a […]

Electronics 85BB-02A, AT32F-403, Cortex M4, Digital Multimeter, DM1109EN, Handheld, MS9280, Oscilloscope, Scopemeter, TP4056, ZOTEK, ZOYI, ZT-702S

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

March 30, 2023April 1, 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

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