EEVblog

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

What’s inside an old style bank note/bill accptor/validator for vending machines and the like? How does it detect genuine notes from dodgy ones? Datasheets: IR Sensor 2595 Driver TLV5629 DAC TOP242 Flyback controller Lattice Mach4 PLD MC68HC11F http://pdf.datasheetcatalog.com/datasheet/AdvancedMicroDevices/mXwuvz.pdf Forum HERE Podcast: Download

Dave explains what causes CRT vignetting problems and how to fix it. A follow up to the HP 35660A Dynmaic Signal Anayser video here: https://www.youtube.com/watch?v=VNsJ8qSk6CI Whiteboard explanation of how a Cathode Ray Tube works, and how it can cause interference to sensitive measurements and the shielding required in a precision …