kwong – Page 8 – Kerry D. Wong

Building a Single Pixel Scanner

A flat bed scanner typically uses three rows of CCD sensors (RGB) to capture images placed directly on top of […]

I just bought an ESD mat for my workbench. ESD mat is great when working with sensitive electronics components as […]

I had wanted to make a spot welder for a while. Most of the DIY spot welders use a momentary […]

I recently upgraded my home phone system and thus was left with a couple of old Uniden DCT648-2 handsets. Most […]

I got a Wavetek 395 arbitrary waveform generator (AWG) last year. Unlike my other equipment (such as HP 8566B, HP […]

I picked up an HP 7044A X-Y recorder on eBay recently. This one was made in the early 1980’s and […]

Till recently, I have been using custom circuitry whenever I needed to backup some firmware. But the process was rather […]

I got this broken Beats Solo2 BT wireless headphone from one of my colleagues. In fact, it was broken once […]

In my previous blog posts, I did a teardown of the Symmetricom/Datum 8040 Rubidium frequency standard and modified the 1PPS […]

Last time, I did a teardown of the Datum 8040 Rudidium standard. As I discussed, the 8040 has a 1PPS […]

I finally got my hands on a Rubidium frequency standard. I have been wanting to get one of these for […]

I picked up a non-working Racal-Dana 1992 Frequency Counter on eBay a few weeks ago. The symptom is that only […]

I got myself an HP 5350B microwave counter a couple of years ago and did a teardown of it. The […]

I bought a couple of IXYS linear MOSFETs (IXTK90N25L2) a while ago to test their capabilities when used as electronic […]

In this blog post, I will show you a simple hardware hack to make your mouse capable of rapid firing […]