Utsource electronics parts.

Caps Wiki dedicated to cataloging and sharing information on repairing devices.

iFixit Repair Guide - Constructing a Capacitor Discharge Tool

OpenBoardView
GitHub - OpenBoardView/OpenBoardView
LTspice® is high performance SPICE simulator software, including a graphical schematic capture interface. Schematics can be probed to produce simulation results—easily explored through LTspice’s built-in waveform viewer. LTspice’s enhancements and models improve the simulation of analog circuits when compared to other SPICE solutions.
DesignSpark PCB enables you to capture schematics and design PCB boards and layouts.
Easy-PC Schematic and PCB Layout (commercial).

YouTube - Inside the WILD Lab of CuriousMarc by Keysight Labs.

YouTube - EEVblog #168 - How To Set Up An Electronics Lab by EEVBlog.
YouTube - EEVblog #180 - Soldering Tutorial Part 1 - Tools by EEVBlog.
YouTube - EEVblog #183 - Soldering Tutorial Part 2 by EEVBlog.
YouTube - EEVblog #186 - Soldering Tutorial Part 3 - Surface Mount by EEVBlog.
YouTube - EEVblog #997 - How To Solder Surface Mount Components by EEVBlog.
YouTube -- EEVblog #1064 - Soldering Irons OLD vs NEW by EEVBlog.

YouTube - Hakko FX-888D - Real vs. Counterfeit - how to spot a fake by Lawrence Billson.

YouTube - Guide to using inexpensive tools to diagnose and fix old computers by Adrian's Digital Basement.

YouTube - How to Troubleshoot Electronics Down to the Component Level Without Schematics by Electronic Tech.
YouTube - Learn How to Troubleshoot and Repair Electronics by Electronic Tech.
Learning Electronics the Easy Way by Lue Yang.

YouTube - How to repair electronics for dummies part 1 by Cooking with Dr. Chill.
YouTube - how to repair electronics for dummies part 2 by Cooking with Dr. Chill.
YouTube - Arcade games and electronics repair basics by Cooking with Dr. Chill.
YouTube - arcade game repair tips finding bad IC's and logic probe by Cooking with Dr. Chill.
YouTube - Arcade game repair atari battlezone interconnet cables upgrade by Cooking with Dr. Chill.
YouTube - Repairing an Atari millipede arcade video game by Cooking with Dr. Chill.
YouTube - Repairing an atari APB arcade game major headache! by Cooking with Dr. Chill.
YouTube - Asteroids Deluxe arcade game repair by Cooking with Dr. Chill.
YouTube - repairing a bally embryon pinball machine by Cooking with Dr. Chill.
YouTube - troubleshoot and repair data east pinball machine circuit board by Cooking with Dr. Chill.

YouTube - 3 Ways to Check Capacitors in Circuit with Meters & Testers by TampaTec.

AE#123 Repairing A Williams Terminator 2 Pinball Machine, Part 1 by Artifact Electronics.
AE#124 Repairing A Williams Terminator 2 Pinball Machine, Part 2 by Artifact Electronics.
YouTube - AE#125 Repairing A Williams Terminator 2 Pinball Machine, Part 3 by Artifact Electronics.

YouTube - Tutorial: My technique for safely desoldering through hole ICs by Adrian's Digital Basement.
YouTube - How To Desolder Electronic Parts Using Different Tools by Mr Carlson's Lab.
YouTube - Electrolytic Capacitor Removal NO Desoldering Required by Mr Carlson's Lab.
YouTube - How To Solder Properly, With Extra Tips! by Mr Carlson's Lab.
YouTube - Choosing The Right Solder, Tech Tips Tuesday by Mr Carlson's Lab.
YouTube - Tech Tips Tuesday, Super Hot Soldering Gun by Mr Carlson's Lab.
YouTube - Switch Mode Power Supply Repair, SMPS by Mr Carlson's Lab.

By Jerry Walker on YouTube:

• Electronics repair with a Thermal Camera
• Electronics For Beginners Part1
• Electronics For Beginners Part2
• Electronics For Beginners Part3
• Electronics For Beginners Part4
• Electronics For Beginners Part5
• Electronics For Beginners Part6 - Fault Finding 1
• To be continued?
• RM Nimbus Power Supply Repair
• 480Z Power Supply Repair Part1
• Cromemco System3 Part1
• Cromemco System3 Part2
• Cromemco System3 Part3
• Cromemco System3 Part4
• Cromemco System3 Part5
• Cromemco System3 Part6
• Cromemco System3 Part7 last video in this series.
• TOSCAL BC1411 Repair Part1
• TOSCAL BC1411 Repair Part2
• TOSCAL BC1411 Repair Part3
• TOSCAL BC1411 Repair Part4
• TOSCAL BC1411 Repair Part5
• TOSCAL BC1411 Repair Part6
• JMPM Transistor Processor Kit Introduction
• Curing CRT Cataracts
• Testing CRT with signal generators

By mjlorton on YouTube:

• Electronics Tutorial #1 - Electricity - Voltage, Current, Power, AC and DC
• Electronics Tutorial #2 - Power - the relationship with Voltage and Current
• Electronics Tutorial #3 - Power Consumption / Battery Capacity
• Electronics Tutorial #4 - Ohm's Law Pt 1 - Relationship between Current, Voltage and Resistance

mjLorton.com Solar Power, Alternative Energy & Electronic Measurement Equipment.

YouTube - EEVblog #737 - World's Biggest Collection Of Electronics Components by EEVBlog.

YouTube - PCB Repair of a 1978 Midway Space Invaders Arcade Game! by Joe's Classic Video Games.
YouTube - Asteroids PCB Repair - Classic Arcade Game Troubleshooting by Joe's Classic Video Games.

YouTube - Does a Rotary Phase Converter Actually Make REAL 3-Phase Power? (120 Degrees) on 2022-12-04, by Clough42.
YouTube - Machine shop phase converters from the old days on 2022-04-14, by dee dee.