Cheap UV EPROM Eraser Teardown and Spectrum Analysis
Till recently, I have been using custom circuitry whenever I needed to backup some firmware. But the process was rather […]
Beats Solo Bluetooth Headphone Teardown
I got this broken Beats Solo2 BT wireless headphone from one of my colleagues. In fact, it was broken once […]
Jitter Measurement of the Pulse Width Expanded 1PPS Output
In my previous blog posts, I did a teardown of the Symmetricom/Datum 8040 Rubidium frequency standard and modified the 1PPS […]
Datum/Symmetricom 8040 Rubidium Standard Modifications
Last time, I did a teardown of the Datum 8040 Rudidium standard. As I discussed, the 8040 has a 1PPS […]
Datum/Symmetricom 8040 Rubidium Frequency Standard Teardown
I finally got my hands on a Rubidium frequency standard. I have been wanting to get one of these for […]
Teardown and Repair of a Racal-Dana 1992 Frequency Counter
I picked up a non-working Racal-Dana 1992 Frequency Counter on eBay a few weeks ago. The symptom is that only […]
HP 5350B Backlight Upgrade
I got myself an HP 5350B microwave counter a couple of years ago and did a teardown of it. The […]
A 400W (1kW Peak) 100A Electronic Load Using Linear MOSFETs
I bought a couple of IXYS linear MOSFETs (IXTK90N25L2) a while ago to test their capabilities when used as electronic […]
Hacking Your Mouse for Rapid Firing
In this blog post, I will show you a simple hardware hack to make your mouse capable of rapid firing […]
Teardown of a Vivitar Rapid Battery Charger
I just picked up a charger along with a couple of NP-FW50 spare batteries for my new Sony Alpha A6000 […]
Bertan/Spellman 225-20R HV Power Supply Teardown
I just picked up another high voltage power supply, this time it is a working Bertan/Spellman 225-20R 20kV one. Unlike […]
Bertan/Spellman 205A-05R High Voltage Power Supply Teardown
I got a non-working Bertan 205A-05R 5kV high voltage power supply and did an attempted repair video a while ago […]
How does Vacuum Cleaner Clean/Dirty Indicator Work?
I have always wondered how the clean/dirty indicator on my Hoover vacuum cleaner works. So when it was time to […]
Linear MOSFET and Its Use in Electronic Load – Update
In my previous post, I discussed why it is beneficial to use linear MOSFETs in electronic load and performed a […]
Linear MOSFET and Its Use in Electronic Load
Power MOSFETs are widely used in switch mode applications such as pulse width modulated electrical motor controllers and switching mode […]