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Different types in Active Elements #ECE
Resistor Color Codes
40 pcs Double-side Protoboard Circuit Prototype DIY PCB Board 2x8 3x7 4x6 5x7cm #Adeept
Various capacitors and their specifications
capacitor - Google Search
Transistor leads -- Good info to know and hard to remember!
For Beginners: Reading Schematics (Circuit diagrams) Part 1