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Archives

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LT3042

low noise voltage regulator LT3042

Posted on May 7, 2019May 7, 2019Categories kicad-symbolLeave a comment on LT3042

SFP connector footprint

Single SFP/SFP+ SMD-connector and cage footprint.

Posted on May 6, 2019May 5, 2019Categories kicad-footprintLeave a comment on SFP connector footprint

FreeCAD V-carving with OpenVoronoi

Sliptonic has worked on connecting FreeCAD with OpenVoronoi to produce V-carving (aka medial-axis) toolpaths.

I worked on the OpenVoronoi stuff 7 years ago and we made this video back then:

Posted on May 5, 2019May 5, 2019Categories OpenVoronoiTags v-carvingLeave a comment on FreeCAD V-carving with OpenVoronoi

Itärastit Latokartano

2019 orienteering season opened.

Not too warm around +5-6 C - with a bit of snow/sleet in the afternoon - welcome to Finland in May 😉

#3-#4 leg looks like a big detour - otherwise mostly no big problems - but a fairly easy pace today...

Posted on May 4, 2019May 4, 2019Categories Orienteering2019Tags itärastit, latokartanoLeave a comment on Itärastit Latokartano

Mowers gonna mow

The Automower logged 516 hours last season. Now in action again with new sharp blades.

  • 516 hours during 2018 season (May-Oct)
  • old blades, new blades.

Posted on May 3, 2019October 20, 2019Categories UncategorizedTags automowerLeave a comment on Mowers gonna mow

AD8015 transimpedance amplifier

AD8015, 10 kOhm transimpedance 240 MHz bandwidth photodiode amplifier.

Posted on May 3, 2019Categories kicad-symbolLeave a comment on AD8015 transimpedance amplifier

This is not Stable32

Recently merged plotting-functions for allantools with a look and feel of Stable32 - thanks to yxie.

I should probably run python3 to get special characters like tau and sigma to work..

Posted on May 1, 2019May 1, 2019Categories Time and FrequencyTags allantoolsLeave a comment on This is not Stable32

SFP Connector

20pin SMD connector + cage for SFP transceiver.

Posted on April 22, 2019April 22, 2019Categories kicad-symbolTags sfp, transceiverLeave a comment on SFP Connector

Gigabits

Some views of 1 Gbit/s (that's 1.25 GHz, or 800 ps per bit) synchronous ethernet bit-patterns.

Posted on April 21, 2019April 18, 2019Categories ElectronicsTags ethernet, gigabitLeave a comment on Gigabits

4 GHz 'scope

We got this 4 GHz 'scope at work. 111 ps is roughly as expected for the rise-time of a fast edge. Signal from a leo bodnar pulse generator.

Posted on April 20, 2019April 18, 2019Categories ElectronicsTags oscilloscope, pulse, rise-timeLeave a comment on 4 GHz 'scope

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