Commercial gainclone chassis options?? - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 3rd June 2008, 03:48 PM   #1
JakeB is offline JakeB  United States
diyAudio Member
 
Join Date: May 2005
Location: Minnesota
Default Commercial gainclone chassis options??

I have searched the web, this forum, ebay, etc. and have seemingly failed to find a cost effective solution.

I would like to build either the lm3886 or the 3875 gainclone and want a commercial gainclone chassis, preferably aluminum.

I know there are many websites that have them available for >40 dollars, but I want a "cost-effective" solution, if possible.

I only need a simple chassis, no frills, no pre-drills, but hopefully aluminum face/rear and/or side plates.

I don't want to have to customize all panels myself, source the panels locally, then cut/drill, etc. I mean I can....but I haven't priced that out yet.

Here are my two top choices from ebay (shipped from Hong Kong).
230257909728 and 330240785006..... both the same seller, one is smaller than the other.

My last question is... what dimensions would be minimum? I assume 2" height (toroid/heatsink clearance) and about 4 in width. It is the length that I am unsure of..? The smaller of the ones above has dimensions of 3.6W x 6L x 2H (internal), which probably won't work as the 250va toroids are about 3.75" diam.

Any help would be great. A related question, is what cutter do you guys use to drill odd holes for the IEC power cord receptacle in solid aluminum?

Thanks, Jake
  Reply With Quote
Old 3rd June 2008, 11:04 PM   #2
DC Dave is offline DC Dave  United States
diyAudio Member
 
DC Dave's Avatar
 
Join Date: Feb 2004
Location: Washington DC
You could make the bigger case work, but it is going to be crowded for a stereo setup. Think of it as a fun challenge or puzzle.

As for the minimum size, it all really depends on what you plan on stuffing in the chassis and what you want it to look like. Aesthetics can be very important for some.

I find it easiest to purchase all the other components first then arrange them to see what size enclosure will work best.

My two channel amp is in an enclosure that is 9.5x6x2.5in external, and there is not much room to spare inside.

Take a look at the photo gallery here and see all the different shapes and sizes people used.

As for inexpensive enclosures have you considered reusing old electronic gear. Recycling is a great resource for diy and sometimes free
  Reply With Quote
Old 3rd June 2008, 11:22 PM   #3
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
Dual Mono Gainclone in a pair of Hammond 1455T2201.

I have used the Avel Lindberg toroid from Apex Jr in this enclosure for a single channel. Look nice and very professional, you have to drill your holes and cut out your IEC Connector.

Oh, and they are around $25 each.

link
__________________
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

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
Commercial Gainclone kit- building instructions Peter Daniel Audio Sector 1797 24th May 2014 02:08 PM
gainclone cap options raypalmer Chip Amps 3 14th December 2008 12:37 PM
Driver Options for Gainclone powered Sub raromachine Subwoofers 26 16th February 2007 06:47 AM


New To Site? Need Help?

All times are GMT. The time now is 10:19 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