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  • HP Calculator Literature
    Large collection of manuals, handbooks etc. for Hewlett-Packard calculators. Found on a post on the MoHP forum https://www.hpmuseum.org/forum/thread-19886-post-176204.html#pid176204
    Tue Oct 8 15:21:25 2024 - permalink -
    - https://literature.hpcalc.org/
    calculator Hewlett manual Packard reading
  • How to Design a Chip for Under $1,000 (Part 1): Book Recommendations
    First part of a series describing how an ASIC can be designed for the https://efabless.com/tinytapeout project, by Andy Turudic.
    See also the article https://www.electronicdesign.com/blogs/nonlinearities/article/55134043/electronic-design-sothe-z80-is-rising-from-the-deadwith-an-on-chip-dac
    Fri Oct 4 21:01:44 2024 - permalink -
    - https://www.electronicdesign.com/blogs/nonlinearities/article/55140130/electronic-design-how-to-design-a-chip-for-under-1000-part-1-book-recommendations
    ASIC blog book electronics reading TODO
  • Dena Kaffee
    Vietnamese coffee roaster, found in an article in "Standard", 2024-09-28.
    Fri Oct 4 17:27:20 2024 - permalink -
    - https://dena.at/
    coffee german
  • Schematics as Documentation – How to Use Symbols and Annotations Effectively
    Tips for better circuit diagrams, found on https://github.com/iic-jku/Circuit-Designers-Etiquette
    Thu Oct 3 18:49:11 2024 - permalink -
    - https://circuit-artists.com/schematics-as-documentation-how-to-use-symbols-and-annotations-effectively/
    electronics for:me reading TODO
  • Bell Systems Letters and Memos
    Mentioned on the TUHS mailing list https://www.tuhs.org/pipermail/tuhs/2024-September/030872.html
    Some interesting documents are
    There Is No Royal Road to Programs - A Trilogy on Raster Ellipses and Programming Methodology (M. Douglas McIlroy)
    MM 67-4734-7 1967-05-15 2.54 MB An Introduction to the Available Programs and Other Design Aids for the Design of Filters, Equalizers and Other Networks
    MM 67-5311-18 1967-08-29 1.27 MB Notes on the Design of Cosine Roll-Off Filters

    A few days later, Chet Ramey posted https://www.tuhs.org/pipermail/tuhs/2024-October/030946.html the link https://www.telecomarchive.com/bstj.html where the Bell System Technical Journal from 1922 to 1996
    Sun Sep 29 15:34:58 2024 - permalink -
    - https://www.telecomarchive.com/lettermemo.html
    Bell computer history reading
  • Snapshot (computer storage) - Wikipedia
    Learn about LVM snapshots and use them for my backups.
    Found on the tarsnap page https://www.tarsnap.com/snaptime.html
    Wed Sep 25 16:48:01 2024 - permalink -
    - https://en.wikipedia.org/wiki/Snapshot_(computer_storage)
    reading software TODO
  • GitHub - rems-project/sail: Sail architecture definition language
    Sail is a language for defining the instruction-set architecture (ISA) semantics of processors: the architectural specification of the behaviour of machine instructions. Sail is an engineer-friendly language, much like earlier vendor pseudocode, but more precisely defined and with tooling to support a wide range of use-cases.
    Found on the CHERI page https://www.cl.cam.ac.uk/research/security/ctsrd/cheri/
    Wed Sep 25 14:49:22 2024 - permalink -
    - https://github.com/rems-project/sail
    computer hardware language programming
  • Best Practices and Personal Tech Notes by Jeffrey S. Jonas
    Interesting information on hard/symbolic links,file permissions etc.
    Found via the TUHS mailing list https://www.tuhs.org/pipermail/tuhs/2024-September/030853.html
    Wed Sep 25 14:08:29 2024 - permalink -
    - http://ferretronix.com/sut/
    reading Unix
  • Solution to Handle excalidraw in Orgmode
    Found on Sacha Chua's blog https://sachachua.com/blog/2024/09/2024-09-23-emacs-news/ which links to the author's post https://www.reddit.com/r/emacs/comments/1fmk6d4/my_solution_to_handle_excalidraw_in_orgmode/
    Wed Sep 25 07:39:26 2024 - permalink -
    - https://github.com/4honor/org-excalidraw
    Emacs graphical-programming org-mode TODO
  • On Switching to Org-Mode for my Website
    Another website produced with Emacs org-mode. Found on Sacha Chua's blog https://sachachua.com/blog/2024/09/2024-09-23-emacs-news/
    Wed Sep 25 07:31:51 2024 - permalink -
    - https://jjanzen.ca/blog/OnSwitchingToOrgMode.html
    blog emacs org-mode reading
  • What’s All This T-Coil Stuff, Anyhow?
    Technique to extend bandwidth invented at Tektronix, found on https://w140.com/tekwiki/wiki/Bridged_T-coil
    Wed Sep 25 07:30:50 2024 - permalink -
    - https://www.electronicdesign.com/technologies/analog/article/21807815/whats-all-this-t-coil-stuff-anyhow
    electronics mathematics TODO
  • DCF-77 radio-controlled clock
    Java-based simulation of the digital part of a DCF77 receiver.
    Tue Sep 24 18:16:49 2024 - permalink -
    - https://tams.informatik.uni-hamburg.de/applets/hades/webdemos/45-misc/80-dcf77/dcf77.html
    DCF77 electronics Java simulator
  • Discussion of C's weaknesses
    The links to CHERI sound interesting.
    Sat Sep 21 15:28:41 2024 - permalink -
    - https://www.tuhs.org/pipermail/tuhs/2024-September/030851.html
    C language programming reading
  • Terry Tao on AI | Mathematical Institute
    Last month Terry gave the Oxford Mathematics London Public Lecture at the Science Museum, revealing his thoughts on the potential of Artificial Intelligence for science and mathematics before joining fellow mathematician Po-Shen Lo for a fireside chat.

    What does he think? Well, he certainly sees a future where mathematics is embracing and benefiting from AI. It might even bring more mathematicians in to the subject, some of them not even professionals.

    Find out more by watching the lecture from 5pm BST on Wednesday 7th August 2024 onwards.
    Fri Sep 20 14:30:25 2024 - permalink -
    - https://www.maths.ox.ac.uk/node/68793
    mathematics reading TODO
  • Tektronix oscilloscope probes
    Includes US patent 2,883,619 Electrical Probe by John R. Kobbe and William J. Polits awarded on April 21, 1959 for use of a resistive center conductor.
    The site was found via a link on the Tektronix wiki https://w140.com/tekwiki/wiki/Risetime_Calculator
    Tue Sep 17 10:08:03 2024 - permalink -
    - https://vintagetek.org/probes/
    electronics physics
  • The Early History of the "more" Command
    Dan Halbert explains the origin of the Unix command more(1).
    Mon Sep 16 11:30:25 2024 - permalink -
    - https://danhalbert.org/more.html
    computer history Unix
  • Tektronix Wiki
    "Welcome to TekWiki, a wiki for the community of Tektronix oscilloscope enthusiasts." Includes pages about Keithley instruments.
    Found via a post on the TUHS mailing list https://www.tuhs.org/pipermail/tuhs/2024-September/030738.html
    Sun Sep 15 14:43:46 2024 - permalink -
    - https://w140.com/tekwiki/wiki/Main_Page
    electronics history reading wiki
  • Nixie Tube & Clock Manufacturer
    "Bringing Nixie tubes back to life" - small manufacturer of Nixie tubes and clocks in Březolupy, Czech republic, https://www.openstreetmap.org/search?query=B%C5%99ezolupy#map=13/49.11641/17.61486
    Found on Jamie Zawinski's blog https://www.jwz.org/blog/2024/09/cathode-poisoning/, https://www.jwz.org/blog/2024/09/cathode-poisoning/#comment-252180
    Mon Sep 9 14:14:18 2024 - permalink -
    - https://www.daliborfarny.com/
    electronics hardware history physics time
  • Calculate solar energy production
    Works only for places in Germany. See https://forecast.solar/ for a potential alternative.
    Sun Sep 8 15:15:00 2024 - permalink -
    - https://www.openpv.de/about
    german physics tool
  • About Chialisp | Chialisp
    "Chialisp is a pure and functional language with a focus on security and auditability. Chialisp is commonly used on the Chia blockchain to lock funds in smart coins until spent and released by their owner. This enables behavior similar to that of smart contracts."
    Mention on the Lisp timeline at https://en.wikipedia.org/wiki/AutoLISP
    Fri Sep 6 14:15:31 2024 - permalink -
    - https://chialisp.com/
    language Lisp programming
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