Teardown – Page 3 – Kerry D. Wong

Keithley 775A Programmable Counter Teardown

I just picked up a Keithley 775A programmable frequency counter from eBay. Specification-wise, this counter is very similar to the […]

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

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. […]

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

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

The last ingredient for my backup power project is an inverter. Since the battery bank I built is a 12V […]

I recently purchased a BSide ACM03 Plus clamp meter so that I could do some high current measurements for my […]

I just picked up another high voltage power supply, this time it is a working Bertan/Spellman 225-20R 20kV one. Unlike […]

I recently was given a broken Epson PowerLite 84 projector. The projector would not turn on when plugged in and […]

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