DocScrutinizer05 changed the topic of #qi-hardware to: Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben / atusb 802.15.4 wireless, and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs and http://irclog.whitequark.org/qi-hardware
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<qi-bot> [commit] Maarten ter Huurne: Fix build with musl libc (master) http://qi-hw.com/p/gmenu2x/d27ebab
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* kristianpaul zzz
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<nicksydney> wpwrak: http://techcrunch.com/2014/09/10/and-the-winner-of-techcrunch-disrupt-sf-2014-is-alfred/?ncid=tcdaily ..the startup Shipstr will make shipping from China (sometime in future) easier :)
<whitequark> wow. disrupt is even more of a terrible joke than I thought
<wpwrak> "the startup Shipstr will make shipping from China easier" hmm, so they're a political party that wants to make an institutional reform ? ;-)
<whitequark> just a bunch of hipsters whose arrogance far exceeds their competence
<wpwrak> that's a rare combination :)
<whitequark> well, you could say "yes" to your question, too
<whitequark> wpwrak: any idea what to use to make a smooth DC sweep from 0V to 2kV (yes) in 100ms or so?
<whitequark> I toyed with a voltage multiplier (Villard cascade) design, but it's too slow
<whitequark> better description of signal I need: sawtooth with frequency 10Hz amplitude 2kV.
<whitequark> also should be phase-locked to some external input
<wpwrak> hmm, look for "sawtooth generator" ? or "function generator" in general ? there must be ton of old circuits for this. not sure what tricks they use.
<whitequark> well, not for 2kV of amplitude :p
<wpwrak> oh, didn't quite notice the 2 kV ...
<whitequark> oh, and I want to use off-the-shelf components. something you could get at e.g. digikey
<whitequark> specifically no custom transformers
<whitequark> currently thinking of using a CCFL transformer--they go to about 1.3kV--and doubling it once