Category Archives: Random

Quick Oil Lamp Note

Posted on 2021-02-25 by Nigel VH

A family member recently passed an old oil lamp we’ve had in the family for quite a while, it had been left with old fuel in it, which had gone bad, and left some brown residue inside, which was entirely … Continue reading →

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Brothers 2019

Posted on 2019-04-28 by Nigel VH

The weather again chose not to cooperate this year for our regular venture down to Black Rock for the UW rocketry class. However instead of cancelling altogether, we were able to adjust our plans and visit a launch site in … Continue reading →

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2018 Balloons Launch

Posted on 2018-05-19 by Nigel VH

The 2018 launch used a single balloon. The flight reached approximately 104,000ft in altitude, and carried carried a number of student payloads, the 900MHz voice telemetry system, a commercial APRS tracker board, my custom IRIS board. Additionally, a Raspberry Pi … Continue reading →

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New RNG Revision

Posted on 2018-01-03 by Nigel VH

Speaking with a few folks I chat with regularly there ended up being some renewed demand for the Random Number Generator USB Sticks I had made a few years ago. I didn’t have any of the original ones remaining, so … Continue reading →

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Binary Addition Machine

Posted on 2017-02-14 by Nigel VH

A few years ago, the idea came to me to build a binary addition machine as a display piece. The logic would be constructed of SPDT (Single Pole Double Throw) relays, which reduces the number of relays and simplifies the … Continue reading →

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