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Blog What are the most important parts to have in your electronics kit?
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  • Author Author: baldengineer
  • Date Created: 29 Jul 2020 4:44 PM Date Created
  • Views 10424 views
  • Likes 12 likes
  • Comments 45 comments
  • parts
  • electronics kit
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What are the most important parts to have in your electronics kit?

baldengineer
baldengineer
29 Jul 2020

This weekend I went to build a circuit for use in an upcoming video. There were two components I was confident that were in my parts kit: a 555 timer and a counter. Now, I did not know which counter I had, but I assumed I must have at least one decade counter in my pile of ICs. Imagine my surprise when I realized that I had no 555 timers and only a single type of counter. And that counter was a johnson-counter designed to drive common cathode 7-segment displays. To make things worse, the only 7-segment displays I have were common anode!image

 

Thinking about all the various types of components, I started to wonder, what else should I check to see if I have in stock? Passives like capacitors or resistors seem like an easy one. But what values? Are inductors critical? If so, what kind? And then when it comes to ICs, what are ones people are still commonly using?

 

So, two questions for the community:

What are the top 5-10 parts you keep your electronics kit?

 

Related to that idea, what about consumables such as solder, cotton swabs, and tape?

What electronics consumables do you keep on-hand?

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Top Comments

  • rjhelms
    rjhelms over 6 years ago in reply to baldengineer +9
    This is close to what I was thinking! I think a barebones kit can get away without inductors, for most people. For resistors and caps, the E3 series (or even just an "E2" series of just 1.0 and 3.3) across…
  • baldengineer
    baldengineer over 6 years ago +7
    Here are some things I have thought of so far: Resistors 100 and 470 ohm 1K, 10K, 100K Zero ohms? Capacitors Ceramic or Film 20-24 pF 0.01 uF, 0.1, uF and 1 uF Ceramics Electrolytic 10, 100, 1000 uF (various…
  • dougw
    dougw over 6 years ago in reply to baldengineer +6
    Some great suggestions are already above. for op-amps MCP604 for logic I would include some CMOS: like a 4040 ripple counter I use CMOS 555s such as (LMC555) heat shrink tubing wire ties USB connectors…
  • babint
    babint over 6 years ago

    You can do a lot with a LED and I have carried a few LEDs in my pocket before at conferences and helped people check that a coin cell battery was dead or that a pin on an IC didn't actually having power to it (no MM) or even polarity. I try to squeeze a few in anything I have.

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  • jkittle99
    jkittle99 over 6 years ago

    Everybody needs the 741 op amp in their bin image

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  • happylittlepcbs
    happylittlepcbs over 6 years ago

    I think SMD 3V3 regs (like the '1117) are the thing that I grab for the most when throwing together a 'quick' project. I also love to have USB connectors, barrel jacks, terminal blocks, headers, and other connectivity stuff.

     

    I had the good fortune of garbage-picking reels from the work dumpster, especially since we've phased out 0603 largely for 0402, but I still use mostly 0603 on personal projects, so I have plenty of parts. I also came by some ancient bins that happen to be the right size for reels, wish I could find more. The most pulled reels are 10ks, 0-ohms, 0.1u caps, and 10u caps.

    image

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  • genebren
    genebren over 6 years ago in reply to dubbie

    Dubbie,

     

    At a quantity of 100 parts, these ATmega328PB parts only cost me $1.14, so I don't really break the bank.  I find that like Nanos, I can use them in almost anything I build (and in some cases I have used multiples on the same project).

     

    Yes, I mighty fine lot of robots could be made.

     

    Gene

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  • thermite
    thermite over 6 years ago in reply to baldengineer

    ESD Safe Brush the black one

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