Teardown of a NanoVNA-F V2 Vector Network Analyzer
Recently, I got my hands on a NanoVNA-F V2 made by SYSJOINT. It features a large 4.3 inch touch screen […]
How Does a Spot Welder Work? Review, Teardown and Analysis of a BIFRC DH20 Battery Spot Welder
A while back I built a spot welder with an old microwave oven transformer (MOT). Since then, I have used […]
Review/Teardown of a HoldPeak HP-770D 40000 Counts True RMS Multimeter
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+ […]
Teardown of an OWON HDS272S 3-in-1 Handheld Oscilloscope/DMM/AWG – Compared with Hantek 2D72
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 […]
Hantek DSO2D10 Teardown Pictures
The DSO2000 series is the latest entry-level digital storage oscilloscope from Hantek. The DSO2D10 version I reviewed (see video linked […]
Teardown of an RSRF Cross-Polarized Dual Band Cellular MIMO Panel Antenna
In this blog post, let’s take a look at a cross-polarized dual band MIMO Panel antenna that is designed for […]
Cel-Fi Go X Cell Signal Booster Extreme Teardown
About a year ago, I bought a Cel-Fi Go X signal booster for my house as where I live the […]
Teardown of a Hantek 2D72 3-in-1 Handheld Oscilloscope/DMM/AWG
Hantek‘s 2D72 (and 2D42) is the latest handheld oscilloscope in the 2000 series that combines an oscilloscope, a multimeter and […]
Teardown of an LW-3010EC Programmable Power Supply
I just received a Topshak LW-3010EC programmable power supply. Like many cheap lab power supplies out there, this is yet […]
Teardown of a UNI-T UT61E+ True RMS Multimeter
UNI-T‘s UT61E+ is a 22,000 count true RMS multimeter. It was released towards the end of last year and is […]
Visualizing a Full Bridge Rectifier
Full bridge rectifier (full-wave bridge rectifier, diode bridge or sometimes just simply referred to as bridge rectifier) is something that […]
Teardown and Testing of a 1500W Pure Sine Inverter
A while back, I did a teardown of an 800W Reliable Electric Pure Sine inverter. In this blog post, let’s […]
Lab Power Supply Build Using Old Power Bricks
Over the years, I have accumulated many used computer power bricks. Although I could just use them by themselves to […]
Teardown Pictures of an HT118A Multimeter
I did a review and teardown of an HT118A multimeter. It is a rather generic 6000 counts true RMS auto-ranging […]
Powering Up an HP YIG Tuned Oscillator
I was going through some of the components I accumulated over the years and stumbled upon a Hewlett Packard YIG […]