home.social

#schematic — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #schematic, aggregated by home.social.

  1. I decided to tidy up my computer since I had a bit of free time.
    One email popped up saying that I couldn’t use their desktop app for cloud drive synchronization without a subscription. Not a problem - I’d be more than happy to delete your app.
    And while I was looking through the list of apps, my attention stopped on EAGLE from Autodesk - an app for designing schematics and PCB.
    This news has probably already become just another unremarkable sentence somewhere on Wikipedia [citation needed], but for me it was a tremendous disappointment that couldn’t be fully conveyed even in a single lengthy novel.

    #autodesk #eagle #fusion -> #kicad
    #electronics #schematic

  2. Remember Computer Chronicles? Remember that schematic? I never found out what it depicts, but I recreated it as vector graphics, because why not? 😅

    #computer #computerchronicles #retro #hardware #schematic

  3. This will be slightly #geeky, and probably only of interest to #electronics hobbyists and #guitar players. I happen to sit in the intersection of that particular #Venn diagram.

    When I was a teenager, having only been playing guitar for a few years, I owned a guitar #effects pedal that went on to become legendary - the Boss HM-2 "Heavy Metal" #pedal. Its sound is still ubiquitous in metal.

    I don't have it any more. I think I traded it for an analog chorus, which was a seriously expensive pedal back then. Although I have other #distortion effects, I've missed it a lot over the years.

    Well, lots of hobbyists build their own effects. And the circuit schematics for many effects, particularly the classics, are available online. So like many others, I decided to build my own HM-2.

    This image is the schematic for the #HM2. It's not the most complicated pedal, but it's a league above something like an Ibanez Tube Screamer. As far as active devices go, it's got 6 #opamps and 10 #transistors of various types, along with a bunch of diodes for multiple types and stages of clipping, and the usual jumble of capacitors and resistors. Oh, and four potentiometers.

    1/x

    #EffectPedal #HeavyMetal #pedals #metal #DIY #schematic #circuit #hobby #OperationalAmplifier #TubeScreamer

  4. Ersatz für das Gate-Array in der 1541

    Es gibt nur wenige Komponenten im Commodore 1541-Laufwerk, die gerne sterben. Das Gate Array, UC1 oder MOS 325572-01 ist eines davon. Und Ersatz ist nicht billig. Aber man kann sich auch einfach selber eines bauen.

    #1541 #32557201 #Array #commodore #CSG #EasyGate1541 #FPGA #Gate #MOS #PCB #PLA #Replacement #Schematic #VC1541 #VHDL #XC95144XL #XC9572XL

    dirkwouters.de/easygate1541/

  5. TFW your schematic capture program can export 5 different flavours of netlist, and your PCB design software can import 7, and there is no overlap between them...

    #TWF #electronics #hobby #schematic #netlist #import #export

  6. Since I've never needed to build any low frequency active filters, I'm going to spin a proto board to see how they work. Set up for a dual op-amp footprint, and a Sallen Key on one side, and a multiple feedback on the other.
    #electronic #opamp #filter #Schematic #PCB

  7. #Leonovo #ideapad 520s does not charge and does not run from power supply, but runs from power supply with unplugged battery?

    In my case, the broken part was PQ305, AON7408L in DFN8-5 package, on the PCB side that faces the keyboard.

    The metal foil is best removed from the inside with a toothpick through those two holes.

    I used hot air to replace the part.

    Part cost shipped: 10€ (10 pcs - anyone need 9?)
    Diagnosis time: ~1 hour
    Replacement time: ~30min

    #repair #diy #ElectronicsRepair #ifixit

    Edit: I was only able to repair this by using #leaked #schematic and #layout data. This should be available legally! #righttorepair

  8. Ok, here's the schematic to go with those noises from last night. Calling it the NANDulator I guess, because I suck at names. :)

    I think this could work as a beginner's circuit, and there's possibilities for hacking/modification as well.

    I'll do a video and post it to the website when I get it built on perfboard and in an enclosure.

    #electronics #schematic #SynthDIY #synths #noisemaker

  9. The Second Worst CAD Package Ever - A while back, [Heavydeck] remembered stumbling across the worst CAD package ever, ... - hackaday.com/2021/12/17/the-se #softwarehacks #schematic #kludge #klunky #online #cad