Monday, November 23, 2020

How to calculate input impedance in LTSpice

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 This post is a follow on to my previous post on output impedance . This time it is for calculating input impedance. Suppose we have a black...
Saturday, November 21, 2020

How to calculate output impedance in LTSpice

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No idea why this isn't readily available on the web, but here it is. Caveat: I'm not an RF engineer, so I might be missing something...
Tuesday, March 19, 2019

Convert Google Inbox reminders to google calendar events

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I used reminders extensively in Inbox. Inbox is going away (end of March 2019). Google calendar has a notion of a reminder, but you can'...
Wednesday, May 30, 2018

IP to country mapping in under 1MB (node js)

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Hi all, I recently wrote some node js code to do IP to country code mapping that uses less than 1MB of RAM for data storage. It also uses t...
1 comment:
Wednesday, May 9, 2018

Testing old Safari browser (6.1.6) on current Linux / Ubuntu 18.04

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I run Ubuntu Bionic 18.04, and I recently needed to test my website on Safari 6.1.6, released back in 2014. The closest I got was by install...
Friday, September 29, 2017

The optimal shape of a kitchen measuring cup

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Four days ago I launched Euclid, more accurate measuring cup on Kickstarter, and it just crossed 100% of it’s fund-raising goal, which is a...
5 comments:
Friday, February 17, 2017

Converting video to high-quality gif on linux (via ffmpeg)

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A brief post today. Recently, I've been taking videos of my screen and converting them to animated gifs. The command I use to record th...