What’s inside a $13K Agilent Source Measure Unit capable of 15fA and 100nV resolution? Plus triaxial cables, and low current measurement connection. Data Sheet Connection Guide Component Datasheets: FDS8978 Dual MOSFET OPA1611 Audio Opamp ISO7240A Isolators ADS8202 Diff Amp ADS1675 24bit ADC 30N06 MOSFET Forum HERE High Resolution Teardown Photos: …
Read More »EEVblog #606 – Mailbag
Dave flips the bird. A 1970’s Mattel car racing game. Sex on a stick multimeter probes. Sagan, Mrs EEVblog, and a whole lot more in today’s Mailbag Monday Bob Widlar poster Easy EDA Channel Engineer on Youtube We Make Things http://felitek.de/ http://www.probemaster.com/ Forum HERE Podcast: Download
Read More »EEVblog #605 – Fig.8 & Cardioid Microphone Patterns
Doug Ford, former head designer from Rode Microphones continues with Part 2 of the microphone technology series by explaining the construction of noise cancelling Figure 8, cardioid, and hyper cardioid microphones. Also, how the polar patterns and responses relate to the physical construction, and how the frequency response is affected. …
Read More »EEVblog #604 – Sinclair C5 Restoration – Part 1
The obligatory “before” video showing Dave’s Sinclair C5 electric “car” and its poor condition before commencing restoration work. Podcast: Download
Read More »EEVblog #603 – Gas Sensor Teardown – Dräger Multiwarn II
What’s inside a Dräger Multiwarn II gas detection warning system used in mining, oil, chemical, and emergency services etc to detect hazardous or explosive atmospheres. Intrinsic safety design and how both catalytic bead and infrared IR gas detectors work, and pellistors. And a teardown of a Hydrogen Sulfide (H2S) sensor. …
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