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Amveco Datasheets
Feb 16, 2014 at 09:11 PM

Over the last weeks I was pretty much swamped with designing a new multichannel gadget for the company I work for. As everyone involved in R&D knows, most of it is just hours and days of investigation and research. Ideally, most of this is done on real parts, but there is always more than enough details to be derived from the appropriate datasheets of the manufacturer.

While getting your data from datasheets (irony!) can be a very clean and obvious process, there are still lots of companies handing out mediocre documentation at best. Usually our friends from far east occupy the first ten slots in the category "worst datasheet known to mankind", but not this time! A US company made it straight to pole, the name is Amveco and they make some really nice torodial transformers.

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Attacks from plusserver.de
Feb 09, 2014 at 03:55 PM

For the last three days, an amateurish brute force dictionary attack from 188.138.26.154/32 took place and stole my bandwidth with a malicous background (please - who still has unsecure credentials on a publicly available SIP server in 2014?). That IP address belongs to the (in such concerns) not so reputable ISP in germany plusserver.de.

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Common Mode Madness
May 19, 2013 at 10:57 PM

Too much common mode noise on your AES3 output to pass EN55022? Almost no space left for breaking the pcb traces without destroying everything around them?
Things like these happen always after you had the first spinout of prototype boards, so that you're forced to become creative. This is a modification of a digital output that was designed to have perfect transitions and minimal rise and fall times to be as good and robust as possible. Unfortunately Monsieur Fourier cought me, and I had to change the output circuit a bit.

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