Resistors - 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 15th October 2012, 11:01 AM   #1
diyAudio Member
 
Join Date: Nov 2009
Location: Lincolnshire UK
Default Resistors

Been going through my component mountain and have come accross some large resistors that send my multimeter mental.

I have one 4 bands green, blue, yellow, gold.... my pc resistor colour guide says 560k.... my multimeter just jumps about like its on drugs. All my smaller resistors have worked fine.

Now some of these resistors could be upto 45 years old as they all came from my father in laws shop before he died. Do they have a shelf life and will a dodgy resistor do this to multimeter.
  Reply With Quote
Old 15th October 2012, 11:05 AM   #2
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
Some old components can develop intermittent contacts, or have tarnished leads. Either can confuse a meter. The former means bin it; the latter means just clean the leads.
  Reply With Quote
Old 15th October 2012, 11:13 AM   #3
diyAudio Member
 
Join Date: Nov 2009
Location: Lincolnshire UK
ok thanks... better get a cloth ready eh... got bloody thousands of the things. Also got some that are made from some sort of clay or pot. Are they any good for regular applications or are they for a particular job?
  Reply With Quote
Old 15th October 2012, 11:20 AM   #4
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
Some pictures might help.
  Reply With Quote
Old 15th October 2012, 11:43 AM   #5
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
if the leads are silver plated or tinned then a dab with a hot soldering iron completely removes the oxidation and replaces it with a thicker soldered (tinned) end that conducts properly.

gold is 5% tolerance. be prepared to do matching when you build.
__________________
regards Andrew T.
  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
Why do people say they can't hear resistors, or all resistors are the same? spice house Multi-Way 184 16th April 2012 12:58 AM
5 Watt Resistors on Aleph 4 and Holco Resistors nicharis Pass Labs 16 8th February 2012 07:50 AM
FS: Resistors, LM3886, speaker terminal, variable resistors, switches and rectifiers chris-man Swap Meet 1 28th May 2009 11:47 AM
Inductive resistors for source resistors bbakota2000 Pass Labs 12 25th March 2005 11:33 AM
Weird Resistors, anyone know anything about resistors priscared Parts 1 19th March 2004 11:59 AM


New To Site? Need Help?

All times are GMT. The time now is 04:12 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