DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 24 Aug 2019, 16:42

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 16 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Plastic Chassis
PostPosted: 23 Feb 2009, 12:27 
Offline
User avatar

Joined: 04 Sep 2008, 09:35
Posts: 179
Location: Menton, France
Hey all,

Put it here, as i'm not sure where else!
A mate of mine has given me a couple of transparent plexi boxesand i'm not really sure they are abs quality. Later on i have in mind a headphone chipamp, and was wondering if these would do as a simple chassis?
I just worried about heat dissapation and grounding problems.
I'll post a photo later to show you what they are like. but are there certain rules to follow when using plastic chassis?


Top
 Profile  
 
 Post subject: Re: Plastic Chassis
PostPosted: 23 Feb 2009, 17:47 
Offline
Editor
User avatar

Joined: 28 May 2008, 21:53
Posts: 4578
Location: Winnipeg, CANADA
I moved this into the general forum for now. I will add a Chassis, Woodworking and Painting Forum if the need arises.

Yeah, heat can be a problem if the amp is hot. Barry used Plexiglas for his K-502 Vacuum Tube Amplifier Kit and did not report problems. So if the plastic is thick enough and you provide some ventilation holes it may work.

_________________
[ DIY Mains AC Power Cable Cord ] - [ Gobo LM1875 Amp Kit ] - [ Tang Band D4-1 Horn Speaker Kit ] - [ Monoblock Push-Pull KT88 Tube Amp Kit ]


Top
 Profile  
 
 Post subject: Re: Plastic Chassis
PostPosted: 23 Feb 2009, 19:12 
Offline
Project Author
User avatar

Joined: 14 Oct 2008, 17:35
Posts: 901
Location: Dartmouth, Nova Scotia
I think plexy glass would do just fine for a headphone chip amp as long as you have good ventellation, as for grounding I think you would just need a ground plane, copper board or aluminum in the bottom of the chassis.

I would like to see these cases, actually I was thinking of using plexy glass on my cd player as a top cover.

_________________
My Mini 12AU7 Tube Preamp, Pioneer SX-D7000, JVC XL-V221BK, JBL L80T, DCM TF700


Top
 Profile  
 
 Post subject: Re: Plastic Chassis
PostPosted: 23 Feb 2009, 20:54 
Offline
Moderator
User avatar

Joined: 02 Sep 2008, 14:34
Posts: 527
Location: Rochester, NY
Sabs,

I have seen plastic used before. Here is one example over at tubelab.com

Image

Alan

_________________
Cheers, Alan
.
Denon POA 2200 | Bottlehead Quickie with PJCCS | Integra CDC 3.1 | SOTA Sapphire-RG301-Grado Gold 1 | Soundwave Soliloquy Series I


Top
 Profile  
 
 Post subject: Re: Plastic Chassis
PostPosted: 24 Feb 2009, 16:01 
Offline
Project Author
User avatar

Joined: 14 Oct 2008, 17:35
Posts: 901
Location: Dartmouth, Nova Scotia
Oh yea, I've seen that one, it looks so cool! :)

_________________
My Mini 12AU7 Tube Preamp, Pioneer SX-D7000, JVC XL-V221BK, JBL L80T, DCM TF700


Top
 Profile  
 
 Post subject: Re: Plastic Chassis
PostPosted: 24 Feb 2009, 16:32 
Offline
User avatar

Joined: 04 Sep 2008, 09:35
Posts: 179
Location: Menton, France
cheers for the info, (and the move gio, was at a bit of a loss!)
the plexi seams nice and thick on the boxes i have.
i'll post a photo, when i can (away from home for a bit)

alan that amp looks goood, original idea.


Top
 Profile  
 
 Post subject: Re: Plastic Chassis
PostPosted: 25 Feb 2009, 12:13 
Offline
User avatar

Joined: 04 Sep 2008, 09:35
Posts: 179
Location: Menton, France
finally a photo of the box. note it is open at one end; i was going to mount it on feet and attch the pcbs to the sides to have some ventilation.
Attachment:
DSCN0002.JPG


This post has a file attachment. Please login or register to access it. Only Registered Members may view attached files.



Top
 Profile  
 
 Post subject: Re: Plastic Chassis
PostPosted: 25 Feb 2009, 13:18 
Offline
Editor
User avatar

Joined: 28 May 2008, 21:53
Posts: 4578
Location: Winnipeg, CANADA
That looks like it can be put to good use.
Here is another project (a gainclone) where the chassis is made from plastic: http://www.vikash.info/audio/tatca/
Image
Image

_________________
[ DIY Mains AC Power Cable Cord ] - [ Gobo LM1875 Amp Kit ] - [ Tang Band D4-1 Horn Speaker Kit ] - [ Monoblock Push-Pull KT88 Tube Amp Kit ]


Top
 Profile  
 
 Post subject: Re: Plastic Chassis
PostPosted: 27 Feb 2009, 05:03 
Offline
User avatar

Joined: 04 Sep 2008, 09:35
Posts: 179
Location: Menton, France
thats a good idea to use the heat sinks as the two sides.

The headphone amp i'm proably gonna use, only has two small heatsinks on the PS.

I'm gonna start it!!


Top
 Profile  
 
 Post subject: Re: Plastic Chassis
PostPosted: 19 Apr 2009, 10:28 
Offline
Project Author
User avatar

Joined: 14 Oct 2008, 17:35
Posts: 901
Location: Dartmouth, Nova Scotia
ooooooooooooooo that looks coooooooool 8-)

_________________
My Mini 12AU7 Tube Preamp, Pioneer SX-D7000, JVC XL-V221BK, JBL L80T, DCM TF700


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 16 posts ]  Go to page 1, 2  Next

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy