Capacitors - 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 27th November 2012, 08:09 AM   #1
diyAudio Member
 
Join Date: Jan 2012
Location: Bloemfontein
Default Capacitors

Gooday,
Can somebody plse identify these,
Some has ITT and STC marked on them, some have electrolytic marked on them. Stantelum is on some of them as well. Can they be used in audio or should they go to the bin !

Regards
Jan
Attached Images
File Type: jpg DSC01433.jpg (370.4 KB, 139 views)

Last edited by Vrystaat; 27th November 2012 at 08:14 AM. Reason: aTtatch foto
  Reply With Quote
Old 27th November 2012, 10:02 AM   #2
diyAudio Member
 
Join Date: Mar 2001
Location: Auburn, WA (somewhere between Seattle and Tacoma)
Blog Entries: 1
Send a message via ICQ to Damon Hill
From the manufacturer's name and the capacitance/voltage rating on the top unit, I would hazard a guess that they are tantalum. Some types are better than others, but given their apparent age I'd be cautious using them.

They do superficially resemble polystyrene caps, but I'm pretty certain they are tantalum electrolytics.
  Reply With Quote
Old 27th November 2012, 11:55 AM   #3
diyAudio Member
 
zigzagflux's Avatar
 
Join Date: Oct 2006
Location: Charlotte, NC
Wet tantalum. Typically very expensive; they combine low leakage, high capacitance in a very small case size.

Good for audio? I'm not so sure; application is everything. They are designed for things such as analog timing circuits. Not suitable for power supply use.
  Reply With Quote
Old 27th November 2012, 12:53 PM   #4
djQUAN is offline djQUAN  Philippines
diyAudio Member
 
Join Date: May 2004
Location: manila
Send a message via MSN to djQUAN Send a message via Yahoo to djQUAN
The smaller one is marked 0.5uF 150V. I don't recall Tantalums rated that high and capacitance that low (though I haven't seen that much) I also don't see a polarity marking (Tants are polarized).
  Reply With Quote
Old 27th November 2012, 01:17 PM   #5
diyAudio Member
 
Join Date: Jan 2012
Location: Bloemfontein
Thanks for all the replies,
These are supposedly more than thirty years, they still test OK and very close to their supposed values with a capacitance meter. Some show polarity and some not. Will they be usable for something like a coupling cap on the input of an amplifier ?

Regards
Jan
  Reply With Quote
Old 27th November 2012, 03:44 PM   #6
diyAudio Member
 
Join Date: Dec 2005
Location: Kuala Lumpur
Isn't that a NATO stock number on them, they are mil spec.
  Reply With Quote
Old 27th November 2012, 08:01 PM   #7
diyAudio Member
 
Join Date: Jan 2012
Location: Bloemfontein
Davidsrsb,
I wouldn't know, they were used as spares for microwave transmission here in South Africa , just thought they were of any value, everything was made better in the olden day's.The equipment they have been used on were analog and have been taken out of service a couple of years ago.

Regards
Jan
  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
capacitors back Swap Meet 0 5th February 2012 10:31 PM
what is the difference between silver mica capacitors and ceramic capacitors ?? prorms Solid State 1 6th May 2008 12:38 PM
Continental Capacitors' "Type-A" oil-filled capacitors? radical Parts 0 21st October 2004 08:39 PM
capacitors: panasonic FC vs elna RJH vs rubycon ZA capacitors costiss Parts 11 30th January 2003 09:32 PM
differences between computer grade capacitors and small can capacitors LBHajdu Pass Labs 0 22nd February 2002 01:29 AM


New To Site? Need Help?

All times are GMT. The time now is 01:37 AM.


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