metal film or carbon film? - diyAudio
Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 20th August 2005, 10:47 AM   #1
Roushon is offline Roushon  India
diyAudio Member
 
Join Date: Sep 2004
Location: Mumbai (Bombay)
Default metal film or carbon film?

purchased a bulk amount of resistors from auction. these are mixture of metal film and carbon film resistors. how do i distinguish which one is metal film or which one is carbon film?

thanks
__________________
S. Roushon
  Reply With Quote
Old 20th August 2005, 11:39 AM   #2
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Sofia
You listen to them.
  Reply With Quote
Old 20th August 2005, 11:52 AM   #3
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
I tried that and they didn't make any noise. Even when I put them into a nice, big pile and cupped my ear near it, they were absolutely silent.

Roushon, you might consider sacrificing a few; break off some of the conformal coating and take a look at what the resistor element looks like.
__________________
You might be screaming "No, no, no" and all they hear is "Who wants cake?" Let me tell you something: They all do. They all want cake.- Wilford Brimley
  Reply With Quote
Old 20th August 2005, 12:35 PM   #4
diyAudio Member
 
JensRasmussen's Avatar
 
Join Date: Jul 2002
Location: Denmark - Jutland
Send a message via ICQ to JensRasmussen Send a message via MSN to JensRasmussen
Carbon types are often 5% with 3 colour rings with one gold (5%)
Metal film types are often 1% and have more rings than the carbon types.

Try posting a picture of them, maybe we can sort it out this way

\Jens
  Reply With Quote
Old 21st August 2005, 12:46 AM   #5
Mr Evil is offline Mr Evil  United Kingdom
diyAudio Member
 
Join Date: Aug 2004
Location: Behind you
Quite often metal films are blue and carbon films are beige.
__________________
https://mrevil.asvachin.eu/
  Reply With Quote
Old 21st August 2005, 09:40 AM   #6
zanash is offline zanash  United Kingdom
diyAudio Member
 
Join Date: Feb 2005
Location: Notts
Rarely ....banded ones are any good sound wise. Look for the closer tolerance like .1% and .05%. Again these will varry in sound considerably.....in my opinion the best sounding are welwyn, holco, vishay......then there are the exotic types !
  Reply With Quote
Old 21st August 2005, 11:51 AM   #7
Roushon is offline Roushon  India
diyAudio Member
 
Join Date: Sep 2004
Location: Mumbai (Bombay)
Default details

the following are some details of the resistors. these are exactly what I read on the resistors.

1. 5 colour bands
2. 6 colour bands
3. JV-8K2, single yellow band
4. 1X-22R, single yellow band
5. 4 colour bands
6. FAC-1K1, single blue band
7. GWC-10K, single blue band
8. GXC-48R7, single blue band
9. GAC-56K2, single blue band
10. GU-150K, no colour band
11. GXC-3K83, single blue band

i do not have a digi-cam. so i am not able to show the pictures.
__________________
S. Roushon
  Reply With Quote
Old 22nd August 2005, 08:55 AM   #8
Roushon is offline Roushon  India
diyAudio Member
 
Join Date: Sep 2004
Location: Mumbai (Bombay)
Quote:
Originally posted by JensRasmussen
Carbon types are often 5% with 3 colour rings with one gold (5%)
Metal film types are often 1% and have more rings than the carbon types.

Try posting a picture of them, maybe we can sort it out this way

\Jens
i guess that the resistors 1,2,6,8,9,11 above are metal film.
__________________
S. Roushon
  Reply With Quote
Old 22nd August 2005, 09:03 AM   #9
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Quote:
Originally posted by Mr Evil
Quite often metal films are blue and carbon films are beige.
The colour of the body is no indication at all. Metal flim can also be beige.
__________________
/Per-Anders (my first name) or P-A as my friends call me
Tube Buffered Gainclone in work |Thread || Diamond buffer |Thread for the group buy | Wiki
  Reply With Quote
Old 22nd August 2005, 11:15 AM   #10
Mr Evil is offline Mr Evil  United Kingdom
diyAudio Member
 
Join Date: Aug 2004
Location: Behind you
Quote:
Originally posted by peranders

The colour of the body is no indication at all. Metal flim can also be beige.
Nothing external is any certain indication - both the body colour and the tolerance can be anything for either type, but usually they follow a pattern.
__________________
https://mrevil.asvachin.eu/
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
metal film resistors or carbon? leitmo Tubes / Valves 2 28th June 2008 10:14 AM
riken resistors: carbon comp or carbon film? jarthel Parts 0 20th October 2006 01:00 AM
Res Survey:....... Carbon film ...or... Metal Film ...............?? nina Chip Amps 13 14th April 2005 12:46 AM
Carbon film vs metal film resistors in a stepped attenuator? G Tubes / Valves 17 22nd August 2004 12:22 AM
Metal film resistors or carbon film in a tube amp? G Tubes / Valves 220 31st March 2003 01:57 PM


New To Site? Need Help?

All times are GMT. The time now is 07:51 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2