Altec Horn Single Cell dimensions/patterns
- Thread starter macaltec
- Start date
gdmoore28
Super Member
No need to guess what's going on in your head, Mr. MacAltec! Just for the fun and curiosity of it, I've been sitting around building cells from pieces of cardboard and balsa. Seems several of the members here, on Lansing Heritage, and Altec Users Board use these horns. Maybe one of them can furnish some dimensions/patterns for us piddlers, experimenters, and loafers.
GeeDeeEmm
GeeDeeEmm
macaltec
Metal Master
I have the width and height of the opening of the 1505 as well as the throat opening where all the cells come together. The length should be easy enough to obtain. I really need the profile of two adjacent sides. I would really like to measure one for myself. I could walk someone through the measurements if need be. I will be working in metal. Hopefully someone comes along soon.....
Zonker92
All shiny and chrome
OK, I guess you have it already, but I found this for you on Pinterest; 1505B apparently. More info here: http://jeffsplace.me/wordpress/?p=9515
Last edited:
macaltec
Metal Master
Thanks. I have seen that site.
macaltec
Metal Master
I found some more dimensions on hostboard but nothing that lends itself to the profile/shape of the individual cells. Im not looking to get into the math behind the design, I just want to build a set. Never understood why such things seem to be shrouded in mystery. It would literally take a couple minutes to make a template from an original.
macaltec
Metal Master
All I need is the outer part of the profile and the front and the back edges. I can use the other info to make it work.
gdmoore28
Super Member
Mac, when you figure out the dimensions, can you post them here? As noted, I want to do the same thing, but in wood.
GeeDeeEmm
alteclipsch
Super Member
An inside caliper would help in determining the inside curves of the cells. Measure at several points inside the cell, plot them and connect with a French curve. Calipers are cheap nowadays.
604man
Super Member
Two way speaker system by C G Mcproud, Nov 1947 and Feb 1948 . page 20
http://www.americanradiohistory.com/Archive-Audio/40s/Audio-1947-Nov.pdf
http://www.americanradiohistory.com/Archive-Audio/40s/Audio-1947-Nov.pdf
alteclipsch
Super Member
Some really interesting stuff in there. Thanks for posting that article!
604man
Super Member
I have the Audio Anthology series 1 through 4 and that horn data is in vol 1.
fortunately , I was able to find it on the web. I like the wood fixture for
holding the sheet metal for soldering....Good luck !! I have made K band horns
for 24 ghz and its a major PITA . You might use low temp silver solder ?
used for plumbing.
fortunately , I was able to find it on the web. I like the wood fixture for
holding the sheet metal for soldering....Good luck !! I have made K band horns
for 24 ghz and its a major PITA . You might use low temp silver solder ?
used for plumbing.
doucanoe
Registered Audio Abuser
I'm not entirely sure I know what you need when you say "outer part of the profile and the front and the back edges". Sketch what you want and indicate dim's needed and post or message. That, or steal a photo off the net and do the same. It will save us both time and you will hopefully get what you are looking for.
macaltec
Metal Master
Thank you Bill and 604Man. I am not the least bit interested in the egineering of the design and why or how it works. I am satisfied that it does. I merely want to build a pair. As to the construction methods I will take suggestions under advisement, working in metal is what I do.
