Electronics – Page 12 – Kerry D. Wong

Keithley 197 Battery Option Build

I have been quite happy with my fixed-up Keithley 197 5 ½ digit bench meter purchased from eBay (you can […]

Ever since I got my HP 436A power meter, I have been looking around hoping that I could obtain a […]

In my last post, I showed my LED backlight mod of the HP 8642B synthesized signal generator. And during the […]

If you take a look at the picture below, you may recognize immediately that it is a picture of an […]

In my last couple of blog posts, I did a brief overview of the EnOcean Pi sensor kit from Newark […]

In my previous post, I took a quick look at the EnOcean sensor kit from Newark for Raspberry Pi and […]

I recently got the EnOcean Pi and EnOcean sensor kit from Newark. The sensor kit includes a temperature sensor module […]

As I mentioned in my previous posting, there was an issue with my Wavetek 907 microwave frequency generator. While everything […]

DS3232 is an extremely accurate RTC with a guaranteed accuracy of 2.5 ppm (0 °C to 40 °C), which translates […]

Last time, I did a teardown of an HP 5350B microwave counter. And as I mentioned in my teardown, the […]

Here is a teardown you do not see very often. I recently bought an HP 5350B 20 GHz microwave counter […]

I recently bought a few old power transistors from eBay. These are PNP Tung-Sol germanium transistors. According to the date […]

A few days ago, I bought a Keithley 197 sold as “unknown working condition” on the cheap. The seller said […]

A while ago, I did a tear-down of a Keithley 196 bench multimeter. Towards the end of that post I […]

A while back, I wrote an article on how to use a CP2102 USB/UART converter chip in place of an […]