Kerry D. Wong – Page 6

A Quick Look at the M5Stack ESP32 Development Kit

I recently received an M5Stack ESP32 development kit from Banggood. Although I have not used any ESP32 based development boards […]

Although LED light bulbs have been around for a while, I have not been able to totally replace all my […]

Differential amplifiers come in handy in applications where common-mode noise and interference are present in the system. This is largely […]

In my previous post, I did a teardown of an HP 8620C sweep generator along with an HP 86245A 5.9 […]

I just picked up an HP 8620C sweep oscillator with an HP 86245A 5.9 GHz to 12.4 GHz RF plugin […]

I recently bought an HP 8671A microwave frequency synthesizer on eBay. This synthesizer can generate signals from 2GHz to 6.2GHz […]

My video on the teardown of an HP 493A traveling wave tube amplifier had generated quite a bit of interest. […]

In my previous video featured on EEVBlog I did a teardown of an HP 493A microwave amplifier along with the […]

Big thanks to Dave Jones at the EEVBlog for featuring one of my teardown videos. His generosity would certainly help […]

Quite a few people had contacted me on the availability of the firmware for the Amrel PPS-2322 programmable power supply […]

As I mentioned in one of my posts a few years back, a color analyzer from the 80’s can be […]

I few months back, I wrote about my experience with the six dimmable Philips LED bulbs I purchased a year […]

In this blog post, let’s take a look at what’s inside an Extech 380460 miliohm meter.

I bought a used RegVolt ATVR-1000D automatic AC voltage regulator (the model I got has long been discontinued, but you […]

As mentioned in my previous post, besides the broken LCD there was also an issue with the power supply portion […]