kwong – Page 10 – Kerry D. Wong

Lambda LQ-521 Power Supply Teardown and Repair

I bought a non-working Lambda LQ-521 linear power supply on eBay a couple of weeks ago. Usually I avoid knowingly […]

I did a teardown of an RSA SecurID many years ago (you can see that post here). In that teardown, […]

I have received quite a bit of positive feedback since I wrote about the hacks on DTM0660L based multimeters last […]

In my previous post, I did a review of the 6000 counts ennoLogic eM860T true RMS multimeter. This meter is […]

I picked up an autoranging True RMS multimeter from ennoLogic a couple of weeks ago. Before this purchase, I actually […]

I did a teardown video of a microwave range (8-10 GHz) RF isolator last week. As a follow up, I […]

Today at a time when digital storage oscilloscopes (DSO) are almost ubiquitous, analog scopes like Tektronix 2465 remain popular among […]

The builtin real-time clock (RTC) in my Keithley 706 works rather nicely as a clock in my lab when the […]

I bought a Wavetek OCXO board a long while ago. My original plan was to remove the onboard crystal oven […]

In this blog post, I will show you how to build a 0 to 5.8 GHz tracking generator for the […]

In this blog post, Let’s take a look at how to measure a filter’s frequency response using a spectrum analyzer […]

In my previous blog post, I did a quick teardown of my HP 8566B spectrum analyzer. In this post, I […]

The latest addition to my lab is an HP 8566B spectrum analyzer. This isn’t just any spectrum analyzer, it was […]

Capacitor ESR (Equivalent Series Resistance) measurement is very useful in diagnosing issues with power supplies. In linear power supplies, a […]

In my previous blog post, I did a teardown of the EDC/Krohn-Hite MV216A DC voltage standard and measured the temperature […]