EEVblog No Script, No Fear, All Opinion

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 …

Radio Shack has gone bust and declared bankruptcy! or Tandy as it is known in Australia. Dave reminisces about the good’ol days Discuss HERE TRS-80 Model 100 teardown TRS-80 Model I teardown Forest Mimms Interview Dick Smith talk

Dave got caught out by thinking his EDC MV106 Voltage Standard had failed, when it hadn’t. Perhaps due to his excitement of being able to do a repair video on it. Another trap for young players. EEVblog #210 – Krohn-Hite DC Voltage Standard Teardown & Calibration Forum HERE

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 …

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 …

Massive news! A new edition of the bible is almost here, after a 25 year wait! You can pre-order it now on Amazon, for April 30th release. And if you want to help support the blog, then please use THIS LINK and I get a small cut, doesn’t cost you …

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: Podcast: Download

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 …

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? …

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

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 …

Dave answers a forum question about whether the Rigol MSO1074Z mixed signal oscilloscope is worth double the price of the DS1054Z. Or whether it’s better to buy the DSO and separate USB logic analyser. But this applies to any mixed signal oscilloscope. Saleae Logic Analyser Don’t forget The Amp Hour! …

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 Podcast: Download

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 Podcast: Download

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: Podcast: Download