EEVblog No Script, No Fear, All Opinion

Part 7 of Microphone Technology with Doug Ford, former head designer at Rode Microphones. This video Doug takes you through the design of the Rode NT3 and NT1000 microphone designs. There is a ton of stuff in here: Closed loop unity gain JFET and bipolar follow circuits. Bootstrapping out miller …

What’s inside a 1975 vintage Tektronix 213 portable oscilloscope/DMM combo? Warranty VOID if NOT Removed T-Shirt Forum HERE Spec sheet Brochure Datasheets: Trigger Chip Decade Counter Chip High Res photos: Podcast: Download

What booty awaits another night time dumpster dive raid on the garbage room? Dave scores a HP Laserjet 3700 colour printer and an ASUS P7P55D-E LX USB 3.0 motherboard with Intel i7-870 processor. Podcast: Download

Dave explains, shows, and measures a potentially big trap with using high value ceramic capacitors. If your 10uF capacitor really 10uF in your circuit? Those humble X7R caps you think are a “stable” dielectric? think again… Class II and above ceramic capacitors can vary their capacitance drastically with DC bias …

Dave tears down Sony’s first digital camera that used removable media, a 3.5″ floppy drive! The 640×480 resolution 0.3Mpixel 1997 vintage Sony Mavica MVC-FD7 Original photos form the camera are HERE Datasheets: MB88146AP UPD72069 Floppy-Disk Controller AD9801 CCD image sensor processor MB90089 OSD SH7032 32 Bit Microcontroller: MB3785A Switching Regulator …

EEVblog2 2nd Youtube Channel: And Engineers Guide To Solving Problems BOOK https://www.youtube.com/user/trombonista92 A really crappy line tracer circuit patent Geppetto Electronics LCDuino RGB backpack TmpUSB temporary USB drive: PIC Development Boards https://www.youtube.com/user/BoomBrush Sony Mavica 3.5″ Floppy Drive Digital Camera X-Core 16 Core 1000MIPS Analog Slice Kit: Podcast: Download

Want to see through a visually opaque material? it’s easy with a thermal imaging camera and a bit of physics. Dave also follows up on the cling wrap ESD issue with some measurements and alternatives. Previous video – How To See Through Objects With A Thermal Camera Anti-static bag myth …

Dave shows you a handy tip on how to see *through* your product using a Flir thermal imaging camera with the cover *on*. Thus being able to maintain the correct airflow, whilst at the same time being able to view the thermal map as if the cover was off! Forum …

I’ve had quite a few people ask why I am not selling my µCurrent through international distributors like I did last time. Well, that’s a good question, and I’ll answer that as well as breaking down the economics of selling your own hardware product, what price you should sell your …

Part 2 of repairing the Stanford Research SR650 8 pole Programmable elliptical filter. Mains Filter datasheet Partial schematic Forum HERE Podcast: Download

Dave scored a cheap non-working Stanford Research SR650 8 pole programmable elliptical filter on ebay. Can it be fixed? Forum HERE Podcast: Download

See the EEVblog lab LIVE Panasonic KX-TVP100AL Voice Processing System: Panasonic KX-TD816AL Digital Super Hybrib System PABX Installation Manual NEC Zen Alpha Datasheets: 3W isolated DC DC converter MT8952 HDLC Protocol Controller MC14LC5480 PCB Codec Filter MT8941 T1/CEPT Digital Trunk PLL MT8952 HDLC Protocol Controller Forum HERE Podcast: Download

As the title says, available from my new shop HERE. FYI, there are no plans to sell it through distributors like last time.  

Mailbag Monday SPOILERS and links to thinks in this this mailbag: Philips XX 1080 nigh vision image intensifier tube Pimoroni Pirate Crew Pibow Raspberry Pi case Audiovox CDM-9000 Tri-Band mobile phone https://www.youtube.com/user/channelengineer PICcell 12F PCmicro breadboard module Zipip Wireless Messenger 2 Forum HERE Podcast: Download

For those following my progress on a setup to capture the Targano microscope output. I have had success using a cheap $160 gamer capture device, direct to SD card from the HDMI output. The Avermedia Live Gamer Portable So much for Tagarno insisting that I need a $1K+ gamer level …