John Curl's Blowtorch preamplifier part II - Page 3691 - diyAudio
Go Back   Home > Forums > Member Areas > The Lounge

The Lounge A place to talk about almost anything but politics and religion.

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 19th March 2013, 03:24 PM   #36901
diyAudio Member
 
Steve Eddy's Avatar
 
Join Date: Sep 2002
Location: Sacramento, CA
Quote:
Originally Posted by Kindhornman View Post
What is it about a sulfur trap that I must have missed along this long tortuous conversation?
I'm guessing something to scavenge sulfur inside the chassis to keep any silver bits from turning black?

se
__________________
The Audio Guild
  Reply With Quote
Old 19th March 2013, 03:29 PM   #36902
diyAudio Member
 
jneutron's Avatar
 
Join Date: Jan 2004
Location: away
Quote:
Originally Posted by Steve Eddy View Post
We're going with box joints. Here's a preliminary chassis in eastern hard rock maple. Going to use some slipfeathers in the corners of the bottom piece, and there we can use things like bloodwood.

se
Yah, no. I was thinking more like this.

jn
Attached Images
File Type: jpg decorativedovetails_lead[1].jpg (24.8 KB, 114 views)
  Reply With Quote
Old 19th March 2013, 03:36 PM   #36903
diyAudio Member
 
QSerraTico_Tico's Avatar
 
Join Date: Oct 2004
Quote:
Originally Posted by john curl View Post
I need this sort of exterior fit and finish to compete in the marketplace. I am open to 'serious' suggestions.
its so ugly
  Reply With Quote
Old 19th March 2013, 03:37 PM   #36904
diyAudio Member
 
Join Date: Nov 2011
Quote:
Originally Posted by Esperado View Post
I consider this kind of pure marketing waste of material and energy, this abuse of resources in a breathless world, as morally unacceptable.
Esperado, do you pull power cords from the wall of all your appliances that draw standby current? Computers? Or drive the most efficient car in the world? Or no car at all? Never listen to tube amps or Class A solid state ones? Still use Pentium I computer, because it still works? Do not hang around in forums for hours and hours to save electricity? Never buy food in plastic packaging? Walk 5 miles instead using transportation? Stick to wind and solar?

".. morally unacceptable" ? A little bit of double standart perhaps?
  Reply With Quote
Old 19th March 2013, 03:37 PM   #36905
diyAudio Member
 
QSerraTico_Tico's Avatar
 
Join Date: Oct 2004
Quote:
Originally Posted by Steve Eddy View Post
This is what inspired my current project. A Gody Model 23 crystal radio from the early 1920's. Wood, Ebonite, Bakelite and brass. Some 90 years hence I still find it a thing of beauty.

se
It's also ugly
  Reply With Quote
Old 19th March 2013, 03:41 PM   #36906
diyAudio Member
 
Steve Eddy's Avatar
 
Join Date: Sep 2002
Location: Sacramento, CA
Quote:
Originally Posted by jneutron View Post
Yah, no. I was thinking more like this.
Much too busy for my tastes.

se
__________________
The Audio Guild
  Reply With Quote
Old 19th March 2013, 03:41 PM   #36907
diyAudio Member
 
Steve Eddy's Avatar
 
Join Date: Sep 2002
Location: Sacramento, CA
Quote:
Originally Posted by QSerraTico_Tico View Post
It's also ugly
To each their own I suppose.

se
__________________
The Audio Guild
  Reply With Quote
Old 19th March 2013, 04:15 PM   #36908
diyAudio Member
 
Kindhornman's Avatar
 
Join Date: Aug 2012
Location: Los Angeles, California
jneutron,
What is the actual name of that would construction. I am trying to get my head around that joint and how it was constructed? It is a very nice construction and made me think of a Chinese puzzle box.
  Reply With Quote
Old 19th March 2013, 04:25 PM   #36909
diyAudio Member
 
john curl's Avatar
 
Join Date: Jul 2003
Location: berkeley ca
Precision fit is another interesting problem that nobody seems to think much about. Do you know what happens if you make an 'interleaving' case with parts that are a little too long or a little too thick? Or visa-versa? Well, I had REAL EXPERIENCE with NEAL FEAY about 30 years ago with Vendetta Research boxes. Not only with fit, and straightness, but even with where the holes are drilled. In desperation, I even hired a guy to completely go over the design of the box, to make it 'machinist proof' in construction,
to little or no real improvement.
You guys talk big, but you couldn't have done any better, just different. The other absurd suggestion was adding some extra material, JUST FOR FASHION, it itself, being useless as a shield material. What a waste of money! If you want 'art' buy art for its own sake.
  Reply With Quote
Old 19th March 2013, 04:25 PM   #36910
diyAudio Member
 
jneutron's Avatar
 
Join Date: Jan 2004
Location: away
Quote:
Originally Posted by Kindhornman View Post
jneutron,
What is the actual name of that would construction. I am trying to get my head around that joint and how it was constructed? It is a very nice construction and made me think of a Chinese puzzle box.
"Decorative dovetail" was the linked name. I have a book at home on dovetailing joinery, so figured I'd find an example for steve.

If you take the end piece, and do the init dovetail with the maple...then cut off the maple, plane the inner surface flat.

Repeat the procedure on the maple side.

Then do final dovetailing into both for fit.

ps...I don't think the process is amenable to using a router for the second cutting passes. I think the grain of the first insets will be oriented such that the bit will cause tearout as the bit leaves the work. I suspect you'd have to stick with a table saw for the second passes, and leave the joints square. If you want keyed joints, I suspect handsaw is the way to go.

jn

Last edited by jneutron; 19th March 2013 at 04:28 PM.
  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



New To Site? Need Help?

All times are GMT. The time now is 02:14 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