EEVblog – Podcast

What’s inside an EC Apparatus brand constant voltage constant current power supply used for Electrophoresis – the separation of particles in a fluid by using an electric field. You can get these supplies quite cheaply on ebay if you look around. A quick reverse engineering of the circuit provides some …

A teardown of the front end PCB in the HP 35660A Dynamic Signal Analyser. Dave does some preliminary investigation to see what opamps and FET’s are unsed in the analog front end to see if they can be upgraded for better performance. This is more for Dave’s record than interesting …

Dave explains one of the most confusing parameters in an opamp datasheet, Input Noise Voltage Density, that mysterious nV/RootHz figure. Along with different types of opamp noise, corner noise frequency, and how to calculate output noise spectral density. And how to use a Dynamic Signal Anayser to measure the Power …

Altium have announced their intention to (finally!) offer a low cost “entry level” PCB design tool. Dave naturally has his Top 5 Tips for Altium to ensure that they don’t screw up this opportunity. Altium Investor Update Be sure to leave your comments on youtube or the blog site or …

A quick followup to Bank Note Validator Teardown, to clarify the LEDs used. https://www.youtube.com/watch?v=qOzP5Vl-CIk Podcast: Download