EEVblog No Script, No Fear, All Opinion

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 …

Dave shows how Tektronix digital oscilloscopes work fundamentally different in their Auto trigger mode from other brands. And also some random ad-hock comparisons between the Tektronix MDO3000, Agilent MSOX3000, Rigol DS2000, and GW Instek GDS-2000A oscilloscopes. Forum: http://www.eevblog.com/forum/blog/eevblog-617-tektronix-oscilloscope-anomaly/ Podcast: Download

So I just got my new 8M/8M VDSL2 office internet installed in the lab (see video). And speedtest.net looked great of course, and everything seemed to work a treat, my connection seemed quick, and a quick youtube speed test showed it to be much faster than my old ADSL2+ connection …

Doug Ford, former head designer at Rode Microphones explains 48V phantom powering of microphones and how it works. There is a ton of stuff here: Electrostatic and electromagnetic noise, differential amplifiers, common mode noise, transformer magnetisation current, JFET differential driver circuits, balanced impedances, phase splitters, miller capacitance and how it …

Dave tests out his newly installed 8M/8M symmetrical VDSL2 internet connection in the EEVblog lab. Building Connect And for those that don’t believe that Telstra charge $8000/month for 10M/10M business Ethernet connection, here you go. Planet Telecommunications VC-230N Ethernet over VDSL2 router

Dave walks around Cebit Australia 2014 at Homebush Bay in Sydney. Show highlights footage HERE If you don’t like shaky hand held walking footage, motion blur, or camera image stabilisation, don’t watch it, no complaints. I do not have a steadycam, and I don’t want advice on a steadycam, and …

Dave checks the Dallas DS1220Y chip in the Prema 6047 7.5 digit multimeter to see if the battery is dead, and if the calibration constants have been lost. ROM is HERE Previous video HERE Forum HERE Podcast: Download

Dave attended the Cebit 2014 event in Sydney at Homebush Olympic Park. Here are some highlights. The EX¹ the worlds first PCB printer. It prints silver conductive ink onto FR4, paper, mylar, or many other types of substrate. GoFar, a wireless car monitoring startup. The University of Newcastle Robotics group …

Teardown Tuesday. What’s inside a 1980’s vintage 8.5 digit multimeter, the 6047 from Prema. Or did Dave diddle himself? Forum HERE EDC Voltage Standard Calibration Check User manual High Res Photos: Podcast: Download