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Showing content with the highest reputation on 02/16/2024 in all areas

  1. Yesterday actually, but I finally finished up the project on Diamond Heights (one of the best views in SF). Thousands and thousands of dollars in Ipe. Over 1000 Ipe plugs to cover the screws. The shed is for the garbage/recycle bins. Two gates about 12' apart. One into the back yard (I use the word yard for lack of a better word). The other keeps passers by from getting at the A/C compressor, located in an open inset that you can't see. The two headers above the gates are to stiffen the fence. The Ipe was so heavy, it made the gates sag. My solution was the header beams.
    8 points
  2. Tested the 4.4mm short protection today. The relay disengages if the plug is even .5mm from fully inserted, so i think it will work IMG_3731.mov
    3 points
  3. I declare this the spiciest meme of 2024 (so far): Explanation, part 1. Explanation, part 2.
    2 points
  4. Absolutely but that might be a good thing. The SR-X was so overly damped it wouldn't really work today.
    1 point
  5. The Redwood hand rails were a recent addition.
    1 point
  6. https://www.stereogum.com/2252076/paul-mccartneys-beloved-hofner-bass-returned-after-54-years-missing/news/ !!!
    1 point
  7. mussels steamed in stout with garlic and onions
    1 point
  8. Presenting your children's dystopian AI future. It's like no one involved in the product read "I Always Do What Teddy Says" by Harry Harrison, written in 1965. If you haven't either, someone copied the text of the short story here (show full description for text, on mobile) https://www.deviantart.com/aegiandyad/art/I-Always-Do-What-Teddy-Says-259013944 Academic reference: https://openpublishing.psu.edu/utopia/content/i-always-do-what-teddy-says
    1 point
  9. I made a SMD version of the Protector PCB for the CFA3, and after testing it this weekend I came up with some ideas for changes #1 - add blocking diodes in series with the power supply inputs. first thing I did was fry the V+ regulator by hooking up power backwards. other protection diodes for the regulators could be added, but I think they're less important #2 - add minimum load resistors for the regulators (R25, R26). I've previously noticed some 3-pin regulators can have an unstable output voltage if their load is too low. the resistors are so each regulator has at least a 5mA load #3 - option of getting DC voltage reference from the +/-12 regulators or the external supply. In this case, the +/-12 regulators could have as much as a 0.5V imbalance which requires hand selecting resistors to set the voltage reference (the voltage across R8 + RV1). if powering the protector with LT1021 referenced GRLVs, the voltage is going to be within millivolts for both + and - references. You would install either R1 or R9, and R2 or R10. the PCB could also be designed to allow switching between the two for two different range options. one feature of using the GRLV / higher voltage supplies for the reference is if those supplies were to become damaged and start outputting a different voltage, the reference will probably be thrown off more than enough to permanently disable the output jacks until the problem is found/fixed. #4 - added RV1 pot, the purpose is to adjust the range of the protection if it is too sensitive or not enough #5 - added dual indicator LEDs, for "Good" (D9/white) and "Protection On" (D10/orange). Not a bi-color LED, but 2 separate LEDs next to each other. The white "good" LED will be lit but very dim when the Protect LED is on, and the orange will overpower it. #6 - changed relay from 12 to 24V for 1/2 the current and to use more equal current from the +/-12V regulators #7 - added 4.4mm Pentaconn jack short protection. The 4.4mm jack has a switch in the back that only opens when the plug has been fully inserted. The relay keeps the L- and R- pins disconnected, which is every other pin on the jack, until the plug has been fully inserted + a .5 second delay, and then instant release of relay when the plug starts to be removed SMD version & in CFA3
    1 point
  10. Alexei Navalny has died, Russia's prison service says https://www.axios.com/2024/02/16/alexei-navanly-dies-russian-prison
    0 points
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