How to remove knicks on Krell Heatsinks/chassis - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

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
Reply
 
Thread Tools Search this Thread
Old 16th January 2009, 10:15 PM   #1
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
Default How to remove knicks on Krell Heatsinks/chassis

Just aquired a nice Krell KSA300 Chassis and it has quite a bit of scratches and knicks in the (purplish) anodised heatsinks, top/bottom and faceplates....

Anyone know how to clearn them up? Sand/buff them out?
__________________
All right, but apart from the sanitation, medicine, education, wine, public order, irrigation, roads, the fresh water system and public health, what have the Romans ever done for us? Life of Brian
  Reply With Quote
Old 16th January 2009, 10:21 PM   #2
diyAudio Member
 
hifimaker's Avatar
 
Join Date: Oct 2003
Location: San Jose
The only way to fill a nick in aluminum that I'm aware of is to weld a small bead to the affected area and then grind and polish it smooth. The anodizing must be removed for weld to adhere. The heat sinks were originally black and turn purple over time caused by high heat. One option is to polish the scratched areas and polish out the nicks to remove any high spots or ridges, and then re-anodize. They will not be the same as "factory new", but they will look a lot better.

-David
  Reply With Quote
Old 16th January 2009, 10:26 PM   #3
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
I don't know if the purple color was due to heat, as you can see in the attached pic, it was a purple hue to the entire chassis.

This thing is a monster. Weighs about 65 pounds empty...

Maybe I will buff and sandblast her...

BTW - the pic is not mine...looks same with no "guts"
Attached Images
File Type: jpg ksa300c.jpg (56.3 KB, 126 views)
__________________
All right, but apart from the sanitation, medicine, education, wine, public order, irrigation, roads, the fresh water system and public health, what have the Romans ever done for us? Life of Brian
  Reply With Quote
Old 16th January 2009, 10:56 PM   #4
diyAudio Member
 
jacco vermeulen's Avatar
 
Join Date: Oct 2004
Location: At the sea front, Rotterdam or Curaçao
Send a message via Yahoo to jacco vermeulen
Or surface grind them, then a rebrush.
Only issue with aluminum is that it requires a grinding wheel that doesn't clogg, easiest pick would be an engine head uphaul shop.
__________________
The buck stops Here
  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
wtb: chassis heatsinks jtktam Swap Meet 0 3rd June 2009 12:26 PM
Retouching knicks and scratches on chassis amsci99 Tubes / Valves 2 8th May 2007 08:18 PM
Krell KSA-50 kit for sale with case/heatsinks/everything Jed Swap Meet 11 29th April 2007 05:46 PM
Chassis with heatsinks... goodlife Parts 4 9th May 2005 05:30 PM
FS: 2 chassis with heatsinks Russell Sit Swap Meet 0 7th August 2002 09:59 AM


New To Site? Need Help?

All times are GMT. The time now is 04:48 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