Component questions

C

Clubsprint

Guest
Pots - I'm finding conflicting information, what and A, B and L types?
Capacitors - is there a marked difference between ceramic and film caps?
Particularly in relation to Audio applications.
What type is film referring to? Would that be "greencaps"?
Resistors - is there an appreciable difference between using carbon and
metal film in relation to Audio applications.
Cheers
 
"Clubsprint"

Pots - I'm finding conflicting information, what and A, B and L types?
Click to expand...

** That's because there are varying standards for the code letters in
different parts of the world.

Most commonly, A= audio taper and B=linear taper.


Capacitors - is there a marked difference between ceramic and film caps?
Click to expand...

** Yep.

Particularly in relation to Audio applications.
What type is film referring to? Would that be "greencaps"?
Click to expand...

** You can assume the "film" = polyester, if nothing says otherwise.

Polyester caps are also known as Mylar, MKT, PEPT and even "greencaps" -
which are sometimes blue, yellow or red.


Resistors - is there an appreciable difference between using carbon and
metal film in relation to Audio applications.
Click to expand...

** Usually there is next to nothing in it - but 1% metal film types are
everywhere now.

Beware of carbon composition and cermet resistors as they can be noisy.


...... Phil
 
"Phil Allison" <philallison@tpg.com.au> wrote in message
news:6mv86bFioc05U1@mid.individual.net...
Capacitors - is there a marked difference between ceramic and film caps?


** Yep.
Would you please elaborate?
Click to expand...

Thanks for the other info, very helpful.
 
"Clubsprint"
"Phil Allison"

Capacitors - is there a marked difference between ceramic and film caps?


** Yep.
Would you please elaborate?
Click to expand...

** Not interested in replying to such a vague and silly question.

Make it specific or go away.



...... Phil
 
Clubsprint wrote:
"Phil Allison" <philallison@tpg.com.au> wrote in message
news:6mv86bFioc05U1@mid.individual.net...
Capacitors - is there a marked difference between ceramic and film caps?

** Yep.
Would you please elaborate?

Thanks for the other info, very helpful.
Click to expand...
Type "ceramic vs film capacitor" into Google...
Tom
 
On Fri, 31 Oct 2008 12:50:55 +1100, Clubsprint wrote:

Pots - I'm finding conflicting information, what and A, B and L types?
Click to expand...
No idea exactly, but stuff like linear, logrithmic(differing), speaker
volumes/balance, and other special purpose.

As to the rest of the stuff, EA had a good intro booklet that explained it
all.

>
 
Phil Allison wrote:
"Clubsprint"
"Phil Allison"

Capacitors - is there a marked difference between ceramic and film caps?

** Yep.
Would you please elaborate?


** Not interested in replying to such a vague and silly question.
Stumped again I see pedo boy
Click to expand...

don't worry we can all see you are so you needn't bother trying
Make it specific or go away.
Oh dear... not a clue philthy



..... Phil
Click to expand...
 
"Clubsprint" <spamspamspamspam@nospam.com> wrote in message
news:gee20i$2f$1@news-01.bur.connect.com.au...
"Phil Allison" <philallison@tpg.com.au> wrote in message
news:6mv86bFioc05U1@mid.individual.net...
Capacitors - is there a marked difference between ceramic and film caps?


** Yep.
Would you please elaborate?
Click to expand...
Google and Wiki are your friend:
http://en.wikipedia.org/wiki/Practical_capacitors

Dave.
 
Clubsprint wrote:

Pots - I'm finding conflicting information, what and A, B and L types?
Click to expand...
A and B are audio and linear taper typically except in Europe where they're
the other way round. L is a special.


Capacitors - is there a marked difference between ceramic and film caps?
Click to expand...
Potentially hugely esp depending on the ceramic dielectric. That's several
pages of discussion in its own right.


Particularly in relation to Audio applications.
Click to expand...
Yes that too. Certain ceramic dielectrics will cause distortion.


What type is film referring to? Would that be "greencaps"?
Click to expand...
The ones that look like they've been dipped in a green gunge ? These are
normally mylar film (Du Pont's trade name for polyester) and are widely used
in audio. A good general purpose cap.


Resistors - is there an appreciable difference between using carbon and
metal film in relation to Audio applications.
Click to expand...
In sensitive stages there's a VAST difference - not to mention tolerances
too. Most metal film is 1% tolerance or better which in pro-audio is very
important.

Graham
 
"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:490B737B.95FE7763@hotmail.com...
Clubsprint wrote:

Pots - I'm finding conflicting information, what and A, B and L types?

A and B are audio and linear taper typically except in Europe where
they're
the other way round. L is a special.


Capacitors - is there a marked difference between ceramic and film caps?

Potentially hugely esp depending on the ceramic dielectric. That's several
pages of discussion in its own right.


Particularly in relation to Audio applications.

Yes that too. Certain ceramic dielectrics will cause distortion.


What type is film referring to? Would that be "greencaps"?

The ones that look like they've been dipped in a green gunge ? These are
normally mylar film (Du Pont's trade name for polyester) and are widely
used
in audio. A good general purpose cap.


Resistors - is there an appreciable difference between using carbon and
metal film in relation to Audio applications.

In sensitive stages there's a VAST difference - not to mention tolerances
too. Most metal film is 1% tolerance or better which in pro-audio is very
important.

Graham
Click to expand...

Many Thanks
 
"Tom" <tom@no.spam.com> wrote in message
news:490aa0e6$0$22612$5a62ac22@per-qv1-newsreader-01.iinet.net.au...
Type "ceramic vs film capacitor" into Google...
Tom
Click to expand...
Sometimes the obvious escapes me.

It appears to have no sonic impact from the evidence of my limited research.

Found an interesting web site with some great articles that you probably all
know.
http://www.sound.westhost.com/articles/capacitors.htm#2.3
 
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