Beginning in electronics: Suggested Stock Componants

Thread Starter

Neville Thannhauser

Joined Dec 3, 2016
27
Hi All,

After recently getting an Arduino Uno kit i'm starting to get back into electronics.
I've always had an interest and have various bits of kit and have a small stock of through hole components. I'd like to be in a position where I can start the majority of projects using components from stock. So I'm looking to add to my existing stock and would be really grateful for someone to tell me what I need to add. Typical projects will be based around Arduino, Microcontroller, LED, Small audio amps, etc
For my project inspiration i'm using the web as well as the following books: Make Electronics, Electronics for Dummies, Arduino Workshop, Arduino for Dummies.

My current stock is:

Resistors:
1Ω, 2.2Ω, 10Ω, 22Ω, 24Ω, 33Ω, 47Ω, 50Ω, 56Ω, 68Ω, 100Ω, 120Ω, 150Ω, 200Ω, 220Ω, 250Ω, 300Ω, 470Ω, 560Ω, 680Ω, 680Ω, 1K, 1.2K, 1.8K, 2K, 2.2K, 3.9K, 4.7K, 5.1K, 6.8K, 10K, 15K, 22K, 39K, 47K, 51K, 68K, 100K, 220K, 470K, 680K, 820K, 1M, 10M

Pots: (K) 1K, 2K2, 5K, 10K, 10K, 47K, 50K, 50K, 100K, 430M

Capacitors:
Electrolytic (uF): 0.47, 1, 4.7, 10, 47, 100, 220, 470, 1000
Non-Polarised (nF) 0.2, 0.22, 10, 33, 47, 100, 220

Semiconductors:
2N3904 Transistor NPN
2N2369 Transistor NPN
BC549C Transistor NPN
BC557B Transistor PNP
IRF540N N Channel MOSFET
NE555 Timer IC
BTA16 Triac, 600V
LM358AN OP amp, Dual
TL062CN Op Amp, Bi FET
LF13741N OP Amp, J-FET Mono
TBA820M Audio Amp, 1.2W
LM386N Audio Amp, 250mW
TDA2822M Audio Amp, Dual
LM371T Voltage Reg, Adjustable +1.2 - 37V @ 1.5A
L7805CV Voltage Reg 5V 1A
L7915CV Voltage Reg -15V 1.5A
ML7915A Voltage Reg -15V 0.5A
7915A Voltage Reg -15V 0.5A
L7812CV Voltage Reg 12V 1.5A
BS-B Bridge Rectifiers
1N4001 Diode
BYX79C Diode, Zener

All shopping list suggestions gratefully received!

Many thanks,
 

dannyf

Joined Sep 13, 2015
2,197
I would go with 100/1k/10k/100k in terms of resistors.

.1u/4.7u/22u with capacitors.

2n5401/5551 for small signal transistors.

lm358 and tda1308.

1117 for varies voltage regulators.

tl431 for voltage reference.

attiny85/pic12f675 if i needed a 555 timer.

stm8s003f/stm32f030f/lm3s if I needed a mcu.
 

GopherT

Joined Nov 23, 2012
8,012
Hi All,

After recently getting an Arduino Uno kit i'm starting to get back into electronics.
I've always had an interest and have various bits of kit and have a small stock of through hole components. I'd like to be in a position where I can start the majority of projects using components from stock. So I'm looking to add to my existing stock and would be really grateful for someone to tell me what I need to add. Typical projects will be based around Arduino, Microcontroller, LED, Small audio amps, etc
For my project inspiration i'm using the web as well as the following books: Make Electronics, Electronics for Dummies, Arduino Workshop, Arduino for Dummies.

My current stock is:

Resistors:
1Ω, 2.2Ω, 10Ω, 22Ω, 24Ω, 33Ω, 47Ω, 50Ω, 56Ω, 68Ω, 100Ω, 120Ω, 150Ω, 200Ω, 220Ω, 250Ω, 300Ω, 470Ω, 560Ω, 680Ω, 680Ω, 1K, 1.2K, 1.8K, 2K, 2.2K, 3.9K, 4.7K, 5.1K, 6.8K, 10K, 15K, 22K, 39K, 47K, 51K, 68K, 100K, 220K, 470K, 680K, 820K, 1M, 10M

Pots: (K) 1K, 2K2, 5K, 10K, 10K, 47K, 50K, 50K, 100K, 430M

Capacitors:
Electrolytic (uF): 0.47, 1, 4.7, 10, 47, 100, 220, 470, 1000
Non-Polarised (nF) 0.2, 0.22, 10, 33, 47, 100, 220

Semiconductors:
2N3904 Transistor NPN
2N2369 Transistor NPN
BC549C Transistor NPN
BC557B Transistor PNP
IRF540N N Channel MOSFET
NE555 Timer IC
BTA16 Triac, 600V
LM358AN OP amp, Dual
TL062CN Op Amp, Bi FET
LF13741N OP Amp, J-FET Mono
TBA820M Audio Amp, 1.2W
LM386N Audio Amp, 250mW
TDA2822M Audio Amp, Dual
LM371T Voltage Reg, Adjustable +1.2 - 37V @ 1.5A
L7805CV Voltage Reg 5V 1A
L7915CV Voltage Reg -15V 1.5A
ML7915A Voltage Reg -15V 0.5A
7915A Voltage Reg -15V 0.5A
L7812CV Voltage Reg 12V 1.5A
BS-B Bridge Rectifiers
1N4001 Diode
BYX79C Diode, Zener

All shopping list suggestions gratefully received!

Many thanks,

For resistor values from 1 to 10 ohms, get 1 Watt and 10 to 100 ohms, get 0.5 watt. All others can be 0.25 watt (seems to be the most common size). You will run into cases where you'll need higher wattage but this is my rule of thumb to keep costs low. Order 10 of each size that do not start with 100. Order 25 or more 100, 1000, 10k, 100k

Order two or more proto boards.

10 or more 2N3904 (small signal)
5 or more 2N3906

2N2222A (switching transistor)

General purpose OP Amp (low noise)
NE5532 (does not go rail to rail)

General purpose (zero volt output on single supply)
LM358

Audio amp
Lm386

Diodes
1N4001
1N4148

555 timers.

5 volt regulators LM7805
I wouldn't worry about higher voltages for now, or negative regulators (focus on single supply)

I wouldn't bother with AC to DC conversion (no bridge rectifier, no negative voltage, ...). You are a beginner, use batteries or a wall adapter from a cell phone charger (5 volts) as your power source for now. Use an AC adapter from nearly anything else (old HP printer) if you need 12+ volts for some audio.

Order things to sense the environment/input into system
(IR LEDs and some Phito transistor's
PIR sensor (can sense human entering a room - used in motion detectors)
Electret Microphones ($0.25 used each so order a couple)
Switches of various types (momentary/tactile, SPST, DPDT, ...)
Light-dependent transistor

Outputs (so you can see things are working and get into out)
Speaker
Motor
LEDs (red, white, green, ...) get plenty, it is a fun way to understand over power - see the Maker book on intro to electronics on how to damage them. 25 cheap red ones should be fine to start.
Other?
 

dl324

Joined Mar 30, 2015
9,576
My current stock is:
Is okay for starters. Add some LEDs/displays, signal/schottky diodes, comparators (e.g. LM393), P MOSFET, and some relays/switches.

If you find that you need a part you don't have, order 100 and you'll start building up a stock of parts that you actually use. That's what I did and I can build many projects with stock on hand; but it took years to accumulate...

Even though you're using a microcontroller, you may find that external logic chips could simplify things. For example, I made a 5x7 LED matrix to drive from a similar device and found that using a counter to strobe the columns allowed me to use fewer I/O's and use simpler code.
 

shteii01

Joined Feb 19, 2010
4,647

ClassOfZero

Joined Dec 28, 2016
114
I just to buy on a per need basis, buy a set of components for a prototype, nail the design then buy a set to build the final product, eventually over time you end up with the bits you know you need and will use. But I was a kid and my only income was a small amount of pocket money. But I guess we're adults now with extra cash.
 

shteii01

Joined Feb 19, 2010
4,647
I just to buy on a per need basis, buy a set of components for a prototype, nail the design then buy a set to build the final product, eventually over time you end up with the bits you know you need and will use. But I was a kid and my only income was a small amount of pocket money. But I guess we're adults now with extra cash.
"The difference between boy and man is the cost of their toys."
I don't know who said it, but it is very apt.
 

#12

Joined Nov 30, 2010
18,167
Every time I order a resistor, I order ten of them. A set from 0.1 ohm to 10 meg will be good enough for nearly anything. "All the 10% values" is probably good enough for a beginner, or go with the 1,2,5 sequence if you're tight for money.
The 1,2,5 sequence on an oscilloscope switch tells me that capacitors that start with 1,2,5 would be nice to have, as in don't worry about 0.33 uf or 0.68 uf. Just get 1 uf, 2.2 uf, 4.7 uf, and continue from there in multiples of 10 up to 1000 uf. You can usually just install the next larger value from what you calculate. One exception is 0.1 uf ceramics. You can use a handful of them when decoupling the power supply near IC's. Ceramics or film caps from o.001 uf to .47 uf in a 1,2,5 sequence would be good. 50 volt rating is good enough for hobby stuff.

Gopher said to get 1N4001 diodes, but the 1N4007's are the same price, so anything in the 1N400x series will do.
A couple of LM317 and LM337 will get you all the voltage supplies you need. Size TO-220 or so and a couple of chunks of aluminum for heat sinks.

After that, your personal interests get involved. Opto-isolators? 555 timers? CD4020 counters? Low noise audio amps? P-type MOSFETs? j-fets?
It depends on what you're curious about.

Notice that nobody said anything about inductors? They are too specific to each job to recommend an assortment, and you can go the first year without needing any. Transformers are too expensive to buy a dozen. Decide on a power supply and get something like a 12V-0-12V at 1 amp.
Be sure to cannibalize dead computers, TVs, and appliances for parts.;)

This is just one more opinion you might consider.
 

Thread Starter

Neville Thannhauser

Joined Dec 3, 2016
27
Many thanks #12 and others.

I omitted to say that when ordering things I tend to round up the order to 10off, 50 or 100 quantities depending on the item.
 

MrAl

Joined Jun 17, 2014
6,949
Hi,

First on the list: White LED's :)

Some things you will find that you cant really order ahead of time. That's because they are too specific to the project. The power inductor is one such item, where you usually have to know what it is going to be used for before you order one. Smaller inductors are different though and you can get a few of those. These are the ones that look sort of like resistors.

So in addition to finding some parts you might use and having a stock pile, you should also be finding different places you can order from. That way you know where to go for a given part, or at least where to look
 
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