Electronics – Page 6 – Kerry D. Wong

A Differential Amplifier Based on INA117

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. […]

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.

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

I recently picked up a BK Precision 1696 programmable switching power supply off eBay. Unlike many of the vintage test […]

Power meters for measuring power consumption of consumer electronics have been around for at least a decade. The most popular […]

We are all familiar with the I/V characteristics of a diode. The main characteristics of a typical diode is that […]

To charge the 110Ah battery bank I built, I need a power supply that can provide at least 10A at […]