EEVblog

EEVblog #723 – Keysight 34470A 7.5 Digit Multimeter Teardown

What’s inside Keysight’s new 34470A 7 1/2 digit Truevolt bench multimeter? What are the PCB changes from the 34461A? What voltage reference does it use to get 16ppm nominal accuracy? 34470A Datasheet 34470A Operating & Service Manual LTZ1000 Voltage Reference AD8638 Chopper Amplifier Forum HERE High resolution teardown photos: Podcast: …

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EEVblog #722 – Mailbag

A monster Mailbag, with extra waffle and advice for youngsters. Amp Hour T-Shirts Forum HERE SPOILERS: GPS based Back To The Future speedometer display from Firmtec Manual SMD Pick & Place reeling tray on Kickstarter Cypress Semiconductor PSoC Bluetooth Low Energy demo kit PCB Backlit calendar Geoaching waypoint altitude decoder …

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