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Articles on Historical Cryptography edit / delete
Going back to the 16th century. Lots of interesting stuff here.
by ats ... to code cryptography history security ... on 20 November 2015
Multipath routing on a Raspberry Pi 2 — whizzy.org edit / delete
As it says.
by ats ... to arm iptables linux networking raspberry-pi router ... on 20 November 2015
The Stonehill Yiddish Song Collection edit / delete
"In 1948, Ben Stonehill, a lover of Yiddish, was aware of how much had been lost to surviving Jews in terms of cultural heritage. [...] Stonehill recorded over a thousand songs from Holocaust survivors, who were being temporarily housed."
by ats ... to folk history song yiddish ... on 20 November 2015
ARX, Arthur and RISC OS - Paul Fellows edit / delete
Early ARM operating systems. I strongly suspect that the A310 I have was originally an Arthur machine.
by ats ... to acorn arm arthur retrocomputing riscos ... on 20 November 2015
Michael Gerzon Audio Pioneer edit / delete
Co-developer of the Calrec Soundfield microphone, as a result of considerable experimentation with stereo and quad recording techniques as a student.
by ats ... to audio microphone recording surround ... on 17 November 2015
Lee Hart's Lead-Acid Battery Charging Basics edit / delete
A nice summary of how to charge a lead-acid battery. It works.
by ats ... to battery charging electronics lead-acid ... on 17 November 2015
Hobbit's techie-rants edit / delete
Some stuff about theatre lighting, and lots of detail about reverse-engineering and extending the Toyota Prius. I have no intention of buying one but it's interesting reading!
by ats ... to car electronics ev lighting prius reverse-engineering theatre ... on 15 November 2015
Homepage of Uuki OH2GVB edit / delete
Some useful notes on the Baofeng/Wouxun cheapie handhelds, but the rest of this is also quite interesting, particularly the repairs to test equipment. (I need to keep an eye out for one of those HP spectrum analysers...)
by ats ... to baofeng ham radio uhf vhf wouxun ... on 15 November 2015
The Life of Kenneth: 555 Constant Current Lead-Acid Battery Charger edit / delete
To implement the state machine of a lead-acid battery charger, you need a couple of comparators and a flip-flop. Which is what's in a 555! Neat design.
by ats ... to 555 battery charging electronics lead-acid psu ... on 15 November 2015
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tasty by Adam Sampson.