Understanding parts?

littlerick · 13th January 2010, 09:10 PM

If a schematic uses a 22k resistor, 1uf capacitor and a 1000uf capacitor....

Does it matter what type of resistor or capacitor is used ie ceramic or electrolytic?

Also if there is no +/- direction, do i need capacitors with no +/- or is it just a case of put it in anyway?

I know they may be dumb questions to some of you guys, but when it comes to electronics I am pretty dumb!

mjf · 13th January 2010, 09:37 PM

hello.
what schematic is it?
if it is the schematic of a gainclone (lm 3886 or so.......)
the 1000uf is an electrolytic
and the 1uf (parallel?) is a film/foil cap (mkt,mkp,.......).
greetings

AuroraB · 10:44 PM

A resistor don't have polarity - power tolerance may be an issue, depending on how much current is passed through that resistor.
A 1 uF capacitor can be non polarized or polarized i.e. electrolytic of some sort.
A 1000 uF cap will usually be electrolytic - although 1000 uF non polarized do exist, the will likely be the size of a shoe box.......
There are at least 12 different types of capacitors that I can think of, just off the top of my head.

Given the very basic nature of your questions - may I suggest you google basic electronic parts - or buy a good textbook in basic electronics. It can be a fine hobby and passtime - but please make some effort in learning the very basics first...
Otherwise all the good people of this forum will usually answer your questions..........
heads up

john blackburn · 13th January 2010, 10:45 PM

Hi littlerick

have a read here........ Capacitors

It shows the two capacitor symbols, polarised and non polarised and explains the difference.

Watch this short video to see why it is very important you know which way round to put them. YouTube - Exploding capacitor

You wouldn't want to be bent over that when it went bang.

John

littlerick · 13th January 2010, 11:14 PM

mjf... I wasnt talking of any particular schmatic, just in general.

AuroraB... I've been googling and reading quite a lot, but as a complete new comer it is very confusing to say the least. I have been looking at schematics and comparing pcb's to try and understand, these are just bits I am unclear on as there seems to be lots of different types of resistors and capacitors.
I have books on order, and a bookmark list of huge proportions.

john... I have the page bookmarked... WOW to the expoding vid.. I had a vision of one going "pop", thats more of a "KAPOP"

Thanks for info guys.

13th January 2010, 09:10 PM	#1
littlerick diyAudio Member Join Date: Nov 2009 Location: Lincolnshire UK	Understanding parts? If a schematic uses a 22k resistor, 1uf capacitor and a 1000uf capacitor.... Does it matter what type of resistor or capacitor is used ie ceramic or electrolytic? Also if there is no +/- direction, do i need capacitors with no +/- or is it just a case of put it in anyway? I know they may be dumb questions to some of you guys, but when it comes to electronics I am pretty dumb!

13th January 2010, 10:37 PM	#3
AuroraB diyAudio Member Join Date: May 2001 Location: Norway, -north of the moral circle..	A resistor don't have polarity - power tolerance may be an issue, depending on how much current is passed through that resistor. A 1 uF capacitor can be non polarized or polarized i.e. electrolytic of some sort. A 1000 uF cap will usually be electrolytic - although 1000 uF non polarized do exist, the will likely be the size of a shoe box....... There are at least 12 different types of capacitors that I can think of, just off the top of my head. Given the very basic nature of your questions - may I suggest you google basic electronic parts - or buy a good textbook in basic electronics. It can be a fine hobby and passtime - but please make some effort in learning the very basics first... Otherwise all the good people of this forum will usually answer your questions.......... heads up __________________ While the Lie leapt from Bagdad to Constantinopel, the Truth was still looking for it's sandals! Last edited by AuroraB; 13th January 2010 at 10:44 PM.

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13th January 2010, 09:37 PM	#2
mjf diyAudio Member Join Date: Jan 2009 Location: upper austria/near linz	hello. what schematic is it? if it is the schematic of a gainclone (lm 3886 or so.......) the 1000uf is an electrolytic and the 1uf (parallel?) is a film/foil cap (mkt,mkp,.......). greetings

13th January 2010, 10:45 PM	#4
john blackburn diyAudio Member Join Date: Sep 2006 Location: Wirral UK	Hi littlerick have a read here........ Capacitors It shows the two capacitor symbols, polarised and non polarised and explains the difference. Watch this short video to see why it is very important you know which way round to put them. YouTube - Exploding capacitor You wouldn't want to be bent over that when it went bang. John

13th January 2010, 11:14 PM	#5
littlerick diyAudio Member Join Date: Nov 2009 Location: Lincolnshire UK	mjf... I wasnt talking of any particular schmatic, just in general. AuroraB... I've been googling and reading quite a lot, but as a complete new comer it is very confusing to say the least. I have been looking at schematics and comparing pcb's to try and understand, these are just bits I am unclear on as there seems to be lots of different types of resistors and capacitors. I have books on order, and a bookmark list of huge proportions. john... I have the page bookmarked... WOW to the expoding vid.. I had a vision of one going "pop", thats more of a "KAPOP" Thanks for info guys.

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