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#schematic

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Tutorial für ein externes 8x Kernal-Modul für den C64

Es gibt immer wieder Situationen, in denen man einen anderen Kernel für seinen Commodore C64 benötigt. Entweder um etwas zu testen oder weil man den Computer nicht öffnen möchte. Und so kam ich auf die Idee, eine solche kleine Steckkarte selbst zu bauen. Und für ein einfaches Mo…

#c64 #Cartridge #commodore #diy #Expansion #External #Kernal #Mode #Port #Schematic #Tutorial #Ultimax

dirkwouters.de/tutorial-fuer-e

Nachbildung des REX 9628 External Kernel 8 Modul

Ein neues Board aus Bildern von alten Boards erstellen, das war mein Ziel. Leider gab es immer nur Fragmente, und das von verschiedenen Versionen. Daher war eine exakte Nachbildung leider nicht möglich, aber die Platine als solches wurde neu erstellt. Das erforderte einige Sch…

#c64 #Cartridge #commodore #diy #EPROM #Extern #JLCPCB #Kernel #löten #Modul #Replica #REX #Schematic #TL866A

dirkwouters.de/rex-9628-extern

#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

I had to do a wiring diagram for the guy who's car I added boost-by-gear to, via a couple of pressure switches and resistor block I made up to simulate a gear position sensor. He wants a wiring diagram and usually I would just draw one by hand as it is pretty simple, but decided I should put some time into learning Kicad. And damn does it feel professional to be able to hand over a nicely drawn and printed out schematic.

#KiCad #Wiring #Diagram #Schematic #motorsport

Venice’s Vaporetto Schematic Route Map
--
venice.nu/wp-content/uploads/2 <-- link to schematic map
--
youtu.be/VrksgMi9t4M?si=jO9GUL <-- overview video of the vaporetto system in Venice
--
The vaporetto (water bus) in Venice, Italy has a schematic map like a subway map.
Indeed, there are strong similarities in colours / fonts / icons to the iconic New York City subway map(s)…
It would be an amazing job, seeing that city from the water every day, and yes, I am romanticizing it of course!
(I had the pleasure of spending most of a Sunday every week in Venice for an Italian winter, as we transferred clients to and from the Dolomites, such an amazing, rich city!)
#GIS #spatial #mapping #mapnerd #transportation #publictransportation #vaporetto #waterbus #bus #venice #venezia #italy #schematic #subwaymap #city #urban #urbantransportation #routemap

A new release of the schemdraw package for Python adds functions for drawing "pictorial schematics", where the circuit elements are drawn as realistic icons, set up via code! Some basic pictorial circuit elements are included (resistors, LEDs, capacitors, breadboard, etc.), but it can also import and draw part files in the Fritzing format as shown here.

Happy circuit drawing!

I needed an audio probe kind of thing to test other stuff with, so I built this. Nothing really new here, it's essentially just a tweaked datasheet example using common basic concepts, and variations of this circuit can be found all over the place. I figured I'd post this anyway, in case someone else might find it useful.

A page with some notes and stuff can be found here:

fstateaudio.com/?page_id=1643