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? Forum: http://www.eevblog.com/forum/blog/eevblog-605-microphone-patterns/ www.dfad.com.au
1 minute tech tip!
Dave shows how to remove sticker residue from test equipment without damage, using a plastic pencil eraser. No chemicals required!
It also works for those troublesome security stickers.
Handy for sprucing up equipment before resale on ebay.
Forum: http://www.eevblog.com/forum/blog/eevblog-560-how-to-remove-sticker-residue-on-test-equipment/
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In the first of a series of videos tutorials on microphones, Doug Ford, former head designer at Rode Microphones explains the basics of how microphones work, the different types - carbon, dynamic, ribbon, condensor/electret, and how the omnidirectional pattern works.
Also, the internal construction of a high end measurement microphone.
http://www.dfad.com.au
Discuss on the Forum: http://www.eevblog.com/forum/blog/eevblog-602-introduction-to-microphones/
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PART 2: http://www.youtube.com/watch?v=7dd_A28gtzY
Dave repairs a HP 35670A Dynamic Signal Analyser. Well, kinda...
Forum: http://www.eevblog.com/forum/blog/eevblog-536-hp35670a-dsa-repair/
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60 minutes of Dave assembling his silent (low noise) Intel i7 3770K video editing computer. If you find that boring, don't watch.
NOTE: This is NOT an instructional video!
YES, I used WAY too much thermal paste (as shown in the heatsink instructions!), get over it. I cleaned it and fixed it afterwards.
YES, I initially put the memory in the wrong sockets.
YES, I did not do any cable management, I just wanted to test the thing, get over it.
I fixed all those issues, so no more stupid comments please.
Also, please DON'T leave uninformed generic comments about needing a high end video card for editing and rendering. You are wrong for my case, read this first:
http://www.eevblog.com/2013/04/16/des...
Coolermaster Silencio 550 case.
Asus Z77 motherboard
Coolermaster 212 Evo heatsink
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Part 4 of the Nixie tube display project.
In this tutorial Dave walks you through a complete PCB design from begin to end, with a ton of hints and tips throughout that can be applied to any PCB layout package.
Forum: http://www.eevblog.com/forum/blog/eevblog-974-pcb-layout-walkthrough/
How to lay out a PCB VIDEO: https://www.youtube.com/watch?v=2b1UdOmxVrw
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Did you know you can use your frequency counter to detect gravity? You've likely done it before and you didn't even know it!
Dave demonstrates the phenomenon of 2g-tipover on quartz crystal oscillators in an Agilent 53131A frequency counter.
Related videos:
How a rubidium frequency standard works: https://www.youtube.com/watch?v=I55uLRRvLCU
FE-5680A Rubidium Standard Teardown: https://www.youtube.com/watch?v=FRdGsSu5Nec
Forum: http://www.eevblog.com/forum/blog/eevblog-646-gravity-detection-using-a-frequency-counter!/
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How is a double sided plated through hole solder masked and silk screened component olverlay PCB manufactured?
Take a step-by-step tour of a PCB manufactuing plant.
http://www.pcbzone.net
Forum: http://www.eevblog.com/forum/blog/eevblog-939-how-is-a-pcb-manufactured/
Hard electroplated gold card edge connectors: https://www.youtube.com/watch?v=e6dH7TvqBVs
Desing for manufacture tutorial: https://www.youtube.com/watch?v=VXE_dh38HjU
DFM Automated PCB Panel Testing: https://www.youtube.com/watch?v=2zGisPMNstI&t=536s
Alba PCB Group Video: https://www.youtube.com/watch?v=P-fbIa7xlxw
Eurocircuits Video: https://www.youtube.com/watch?v=IzbmfGZDs0A
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Cheapest price for the DS1052E:
http://www.amazon.com/gp/product/B001P63VOA?ie=UTF8&tag=ee04-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=B001P63VOA
Review of the Rigol DS1052E Oscilloscope
See newer updated videos on this scope:
How to turn the 50MHz unit into the DS1102E 100MHz unit with just a serial cable!
http://www.youtube.com/watch?v=LnhXfVYWYXE
and an update on that procedure:
http://www.youtube.com/watch?v=R2dGKcMtAvg
A teardown of the DS1052E:
http://www.youtube.com/watch?v=sO5iGwHpmHc
And Rigol caught with their pants down:
http://www.youtube.com/watch?v=G6WH7kW-NVg