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, 16:39

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 13 posts ]  Go to page 1, 2  Next
Author Message
PostPosted: 25 Nov 2009, 09:15 
Offline

Joined: 26 May 2009, 18:51
Posts: 130
Location: Lilburn, Georgia USA
I have decided to use one of the bamboo boxes from Wal Mart to house my 832A stereo amp. How do you cut neat holes in bamboo without splintering it? My Forschner bits have saw teeth around the edges and that`s not good. Thanks, Robert P.


Top
 Profile  
 
PostPosted: 25 Nov 2009, 22:43 
Offline
Editor
User avatar

Joined: 28 May 2008, 21:53
Posts: 4578
Location: Winnipeg, CANADA
Hi Robert, any chance you could post some more details on the bamboo boxes from WalMart (photos, size, cost)? They seem like something us DIYers may be interested in.

Sorry, I have never worked with bamboo. What if you used a circle template and a sharp know to score the wood first?

_________________
[ 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  
 
PostPosted: 25 Nov 2009, 23:19 
Offline

Joined: 14 Nov 2009, 20:24
Posts: 10
Location: Canada
Don't use a hole saw or spade bit; you'll splinter the hell out if it. Your best bet is probably drilling a small hole, then using a coping saw or scroll saw to cut out the actual hole.


Top
 Profile  
 
PostPosted: 26 Nov 2009, 00:33 
Offline

Joined: 26 May 2009, 18:51
Posts: 130
Location: Lilburn, Georgia USA
Hello Gio, These bamboo boxes are made from 1/4 inch thick flattened and cured bamboo. They are 6X12X2&1/2 inches and are finished nicely. Thanks, Robert P.
Attachment:
Pictures of tube amp 832A 009.jpg

Attachment:
Pictures of tube amp 832A 010.jpg

Attachment:
Pictures of tube amp 832A 011.jpg


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



Top
 Profile  
 
PostPosted: 28 Nov 2009, 07:08 
Offline
User avatar

Joined: 02 Mar 2009, 12:41
Posts: 1099
Location: Vänersborg, Sweden
Another 832-phreek!!!! :up:

I know there's a speakproject in German Klang&Ton where a bamboo bowl from IKEA is used. I have to check if I have that issue and if there's anything written how the hole was made.


They are using a router to make the big holes for the 4# fullrange speaker.

_________________
Magnus

“If you don't know where you are going, any road will get you there.”
―Lewis Carroll


Top
 Profile  
 
PostPosted: 29 Nov 2009, 21:03 
Offline

Joined: 26 May 2009, 18:51
Posts: 130
Location: Lilburn, Georgia USA
I found how to cut the bamboo. I used a Roto Zip spiral cut tool that cuts with the side of its drill bit looking cutter. It is like a larger version of a Dremel tool. It cut my big tube socket holes with no splinters at all. I also found that the deck of the bamboo box is only about 3/16 inch thick (3.6mm) so I will mount the volume control between the driver tubes as close to the front side as I can. So far I have all the passive parts and the iron on the way. I just recieved the Edcor iron for the Pete Millett Engineers Amp so I guess I`ll work on it while waiting for the rest of the parts for this 832 project. Tubes are cool!! Robert P.


Top
 Profile  
 
PostPosted: 29 Nov 2009, 21:30 
Offline

Joined: 26 May 2009, 18:51
Posts: 130
Location: Lilburn, Georgia USA
Holes successfully cut in bamboo with spiral cut tool. No splinters at all
Attachment:
Pictures of tube amp 832A 011.jpg


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



Top
 Profile  
 
PostPosted: 30 Nov 2009, 20:10 
Offline
Editor
User avatar

Joined: 28 May 2008, 21:53
Posts: 4578
Location: Winnipeg, CANADA
Thanks for sharing that info Robert. Hopefully those bamboo boxes are also available in the Canadian Wal-Marts.
Cheers

_________________
[ 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  
 
PostPosted: 02 Dec 2009, 05:25 
Offline

Joined: 04 Oct 2008, 11:29
Posts: 375
Location: Chillicothe, Ohio
I've used the bamboo boxes several times for headphone amps. My sweetie picked them up at Kohl's. I've never seen any this big, though. Nice idea.

Cheers, Greg


Top
 Profile  
 
PostPosted: 13 Jan 2010, 09:16 
Offline

Joined: 23 Feb 2009, 22:38
Posts: 20
Hi All,

I purchased the same box from World Market to house my PS for under $5.

viewtopic.php?f=9&t=633

I'm not sure if it's real bamboo or just finished to look like it. It drilled and cut like wood.

Beta2.0

_________________
"Life's journey is not to arrive at the grave safely in a well preserved body, but rather skid in sideways, totally worn out, shouting... holy s*** ... what a ride! " George Carlin


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 13 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 3 guests


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