Posted on April 24th, 2014 4 comments
What’s inside a $13K Agilent Source Measure Unit capable of 15fA and 100nV resolution?
Plus triaxial cables, and low current measurement connection.
FDS8978 Dual MOSFET
OPA1611 Audio Opamp
ADS8202 Diff Amp
ADS1675 24bit ADC
High Resolution Teardown Photos:
Posted on April 22nd, 2014 12 comments
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
Posted on April 20th, 2014 7 comments
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.
Proximity boost effect,
Microphone calibration is also discussed using a home made artificial voice speaker box.
And practical considerations about foldback wedges used in stage performances and how to avoid feedback using proper microphone technique.
And did Jimmy Barnes offer Doug a swig from his bottle of Vodka?
Posted on April 17th, 2014 8 comments
The EEVblog dedicated server which hosts this site and the forum went down for most of today.
It was not a fault of the server itself, but a major outage for all dedicated servers hosted with HostGater, the company I use that provides the server.
Here is some info
Sorry for the downtime but it was out of my control. All seems ok now.
Posted on April 17th, 2014 19 comments
The obligatory “before” video showing Dave’s Sinclair C5 electric “car” and its poor condition before commencing restoration work.