Paper clips as TO-220 heat sinks - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

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
Thread Tools Search this Thread
Old 11th June 2009, 04:22 AM   #11
okapi is offline okapi  United States
diyAudio Member
okapi's Avatar
Join Date: Aug 2004
Location: Buffalo
can you use a paper clip to hold a coin on?
  Reply With Quote
Old 11th June 2009, 04:49 AM   #12
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
Join Date: Nov 2005
No point if a coin doesnt work

But you have a good point tho, if the clip is reliable in the long run

I like the idea of using beercan alu
Clamped with a small piece of stable metal
Attached Images
File Type: jpg diy heatsink.jpg (11.3 KB, 216 views)
sometimes we know very little, and sometimes we know too much
  Reply With Quote
Old 11th June 2009, 05:31 AM   #13
diyAudio Member
Wavebourn's Avatar
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
I once needed to improve a heatsink, so cut 1/4" aluminum wire on 3" peaces, stuck them between fins of the heatsink, and glued by epoxy. It looked like a hedgehog, but the temperature dropped down significantly.
The Devil is not so terrible as his math model is!
  Reply With Quote
Old 11th June 2009, 06:33 AM   #14
diyAudio Member
Join Date: Jun 2009
Perhaps coins could give better results if hammered to more smoother and thiner surface. Thats easy. I have done it many times but never considered that it could make a heatsink. Not dure if it is cheaper w.r.t the quality.
  Reply With Quote
Old 11th June 2009, 06:55 AM   #15
diyAudio Member
Join Date: Apr 2003
Location: Portland,Oregon
Blog Entries: 4
Send a message via AIM to DigitalJunkie
I've used coins as heatsinks for some small bridge rectifier modules (those little tiny round ones). I just stuck them on with epoxy (JB weld,lol) and they worked great. I even built up a larger finned 'heatsink' with a stack of off-set pennies all epoxied together,much like in the picture. It actually worked quite well!

(Edit: I think the trick to using epoxy,is to use some that is meant for (and contains) metal.It probably has lower thermal resistance?! Just a thought.)
  Reply With Quote
Old 11th June 2009, 01:31 PM   #16
CBS240 is offline CBS240  United States
diyAudio Member
CBS240's Avatar
Join Date: Aug 2005
Location: K-town
Originally posted by cbdb
Ever try pieces of aluminum beer cans? You can cut (with siccors) and bend them to custom sizes and shapes.

To cool a TO-18 transistor. It worked, the trany didn't blow out as it did without the beer-sink.

As for pennies, you need to get some old ones, pre-1980. They are solid copper. The new ones are only plated.

  Reply With Quote
Old 11th June 2009, 05:45 PM   #17
GPG is offline GPG  United States
diyAudio Member
Join Date: Dec 2004
Location: Indiana USA
The fastest TO-220 heat sink is a small binder clip. It is much better than a lowly paper clip!

You can also arrange the little levers for the best appearance.
For production, you can even remove the levers to prevent tampering.

  Reply With Quote


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
What might this mean for heat-sinks? seventenths Everything Else 17 1st July 2008 07:20 PM
Big heat sinks AR2 Swap Meet 0 30th December 2006 07:51 AM
Heat Sinks serengetiplains Parts 3 3rd January 2006 06:41 AM
where do you get your heat sinks ? percy Chip Amps 12 16th August 2005 07:00 PM
Big Heat Sinks dshortt9 Parts 15 4th November 2002 07:36 PM

New To Site? Need Help?

All times are GMT. The time now is 09:31 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2