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ohmOP

This repo is an information repository for the 4chan /diy/ board's /ohm/ general
Ohm OP paste


Troubleshooting Advice:

  • Read the service manual or schematic if it exists
  • Read the datasheets of relevant components if you can find them
  • If audio is making a buzzing noise, look up "ground loop isolator"
  • (add internal link to detailed troubleshooting file here)

Project Ideas:

Project List by Categories
Unconventional Components
Don't ask, roll

Hackaday
Instructables Technology
Adafruit
Makezine Electronics


Free Software Tools:

Wikipedia list comparing simulators
Wikipedia list comparing EDA tools
Wikipedia list comparing CAD tools

Recommended Simulators:

LTspice - Quick to use simulator with a decent catalog of parts, closed source
Qucs-S - Possibly better than LTspice, requires NGspice, open source
QucsStudio - Possibly better than Qucs-S, windows/wine, closed source
KiCAD - Has a simulator that runs on NGspice internally, open source
MicroCap - Formerly paid software, windows/wine, closed source
Logisim Evolution - Only for digital circuits, can simulate entire breadboard computers, open source

Recommended EDA Tools:

KiCAD - Good, big catalog of parts, can make scripts and addons, open source
Altium Circuitmaker - Apparently good, windows/wine, closed source
EasyEDA - Web-based and bloaty, makes JLC fabrication and assembly easier, closed source
LibrePCB - Apparently good, open source

Recommended CAD Tools:

FreeCAD - Can be clunky, the Realthunder and Onsdel forks may be better, can export models to KiCAD, open source
OpenSCAD - Programming-based, can't chamfer, open source
Fusion 360 - Good, free license is increasingly limited, closed source
OnShape - Good, web-based, free license means all files are public, closed source
Sketchup Make 2017 - Shit but simple, just works bro, closed source
QCAD - 2D only, good, need to pay for certain file exports, open source


Component sourcing:

Adafruit page of hobbyist/surplus parts stores

Recommended Component Vendors:

Octopart - Searches through multiple vendors, more powerful parametric search, but can get confused with different vendors' data formats
Mouser, Digi-Key, Arrow, Farnell, RS - Whichever has a warehouse closer to you will mean cheaper shipping
LCSC - Chinese version of Digi-Key, stock a lot of western parts, but also a bunch of unique chinese parts you won't see anywhere else
eBay/AliExpress sellers - fakes are not uncommon, beware when buying all but the most jellybean ICs
Local shop - will be far more expensive with very limited stock, but more convenient, and may be worth designing around


Books:

Mims III, Getting Started in Electronics
Geier, How to Diagnose & Fix Everything Electronic
Kybett & Boysen, All New Electronics Self-Teaching Guide
Scherz & Monk, Practical Electronics for Inventors (arguably has minor issues with mains grounding)
Horowitz and Hill, The Art of Electronics


YouTube Channels:

Full list

  • EEVblog
  • W2AEW
  • Moritz Klein

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