EEVblog

No Script, No Fear, All Opinion

Dave opens some of the 332 coffee tins full of hardware parts he scored at an ebay auction. What’s inside? Forum HERE World’s biggest component collection video HERE

Dave shows why Uni-T multimeters generally suck in this teardown (and a little bit of a review) of the $180 UT71E 0.025% accuracy multimeter with power measurement capability. He also opens the UT71A, UT61E, and compares the input protection and rating with a Brymen BM257. MAX6190 Voltage Reference OP1177 Opamp Cyrustek ES51922 DMM chipset Holtek HT1621 LCD driver AD636 True RMS Converter chip Forum HERE Hires teardown photos:

Mailbag time. Forum HERE SPOILERS: Atom Bombs Book Making of the Atomic Bomb BOOK The Bruces Monty Python Sketch Ideal diode (synchronous rectifier) datasheet Car ECU teardown PAL to RGBS converter teardown Pump controller teardown Meet Edison Educational Robot Casio FX790P scientific calculator pocket computer PAL/NTSC decoder Digilent ChipKIT WF32 Digilent Baysys3 Artix-7 FPGA Demo Board

Join Dave step-by-step as he attempts to find the problem with a non-booting Aiphone GF NS building intercom system. Will a reset chip make a monkey out of him? And as always, a trap for young players is explained. Brochure Install Manual Setup Manual Datasheets: Mitsubishi M16C 24LC128 EEPROM RS232 driver

Dave does some performance checks and then tears down a Krohn Hite EDC 4601 0.05% 6 decade 1ppm resolution 0-1000V AC voltage standard. Service Manual with schematics MV106 DC Voltage Standard User manual Datasheets: Vactrol XR2228 Multiplier/Decoder Epson SPG8640 oscillator/divider Forum HERE Hires teardown photos:

Are the laws of physics being bent? Dave explains why free energy / over unity / quantum vacuum circuits are bullshit. And how to find out what’s really happening here by using basic engineering principles. Can a bunch of toroids, some wire, and a simple circuit boost converter really generate more power than you put in and power 23 LED’s for 52 hours? He goes through the claims and debunks them one-by-one. Explains how the circuit works and then builds up the circuit and takes some measurements to show that the energy can easily come from the battery and not some quantum vacuum. This is as much a demonstration of basic ballpark system engineering, calculations, and understand, as it is debunking. The video in question is HERE Original forum thread with author comments is HERE New forum thread HERE

This video is a response to a forum question that asks if the RP2200 150MHz probe supplied with the DS1054Z is degrading the performance of the scope compared with the 350MHz RP3300 supplied with the DS2000. Are there any performance differences between the two probes on a 100MHz bandwidth DS1054Z? The forum thread in question Forum HERE

Dave tears down a top quality industrial joystick, the Penny + Giles JC6000 rugged joystick controller. Thanks to http://www.controldevices.net/ Forum HERE

Mailbag Monday This week two very notable people send in mailbag items! SPOILERS: Book Review: Iconic: A Photographic Tribute to Apple Innovation Colin Mitchell from Talking Electronics 555 Timer LED scanner kit Basic Electronics Course Interviews with Colin Mitchell Bil Herd, designer of the Commodore C128 among others! Amp Hour show with Bil Joystick Porn Hazet Screwdrivers An old Russian DIY Sinclair clone home computer from http://www.arcadebox.ru/ Stay Adhesive Weston Model 310 AC/DC Wattmeter from 1944! Forum HERE

Dave reviews all the features in the new Rigol DS1054Z oscilloscope. Be sure to see all the other videos on this scope: Review Summary Teardown Jitter Problem Jitter Problem Fix Reverse Engineering

Dave reviews the new Rigol DS1054Z Oscilloscope. Is this US$399 marvel really the best value budget oscilloscope on the market? This is a summary video, be sure to watch all the other videos on this scope: Features review Teardown Jitter Problem Jitter Problem Fix Reverse Engineering Forum HERE

What’s inside the new Keysight (Agilent) MSO/DSO 3000T series oscilloscope? What is different form the original 3000A series? Xilinx XC3S1600E Spartan FPGA datasheet Review Video Forum HERE High resolution teardown photos:

The new Keysight/Agilent 3000T Oscilloscope is released today, and Dave has a world first review of it. It’s a replacement for the existing 3000A X-Series, and is essentially the same in many ways, so only the differences are covered in this video. A lot of features from the 4000 X-Series have filtered down, and some things are now standard. How does it compare to the Tektronix MDO3000? Original 3000A review HERE 4000 X-Series review is HERE Forum HERE

Dave rescues this awesome one-of-a-kind Indiana Jones themed HO scale model train set from the dumpster! Complete with Ark of the covenant, Petra, the well of souls, the truck chase, the raft ride, the swing bridge, the plane, the mine cart chase, and the big boulder. All he’s got to do is take it apart… And an eerie tour of an abandoned hobby shop. Forum HERE