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View Full Version : PLANS WANTED FOR ALTEC 826A iconic speaker system



ALTEC9846-8A
12-11-2015, 08:58 PM
686916868968690I need plans. I have the speakers and parts but can't find the plans anywhere on line. I also got a Altec 323 amplifier from 1955 that I just completely rebuilt Thanks:(

ALTEC9846-8A
12-14-2015, 10:24 AM
All I want for Christmas is the plans for a 826a Iconic speaker system:D:D. OK plan B. Does anyone know what Volume the woofer needs and where the holes for the baffles go? I will mount the horn on top of the cabinet

Horn Fanatic
12-14-2015, 01:46 PM
All I want for Christmas is the plans for a 826a Iconic speaker system:D:D. OK plan B. Does anyone know what Volume the woofer needs and where the holes for the baffles go? I will mount the horn on top of the cabinet

Merry Christmas!

http://www.lansingheritage.org/images/altec/plans/1968-enclosure/page10.jpg

Earl K
12-14-2015, 02:48 PM
( From the 826 pics in the library ) I guesstimate the 826 cabinets internal volume as 7.5 cu ft ( after subtracting 5"-6" for leg height ) .

DIMENSIONS (http://www.lansingheritage.org/images/altec/catalogs/1954-home/page09.jpg)

( Your cabinet ) tuned to the 803a's fs ( & then placed near a corner ) should get you close to original Altec performance goals .

Having your( 60 plus year ) old speaker tested for it's TS parameters would be helpful in determining the best box/woofer alignment .

http://www.lansingheritage.org/images/altec/catalogs/1954-home/page08.jpg

:)

ALTEC9846-8A
12-15-2015, 03:40 PM
OK Thanks guys. Your reward will be a schematic for the Altec a323 amplifier. This is the only one on the net beside the one I posted on Flickr. If you want to see better pictures of the amplifier just google my name( Keith Greenhalgh ) and you will get a link to Flickr to see the pictures.68787:bouncy:

Horn Fanatic
12-15-2015, 07:06 PM
All I want for Christmas is the plans for a 826a Iconic speaker system:D:D. OK plan B. Does anyone know what Volume the woofer needs and where the holes for the baffles go? I will mount the horn on top of the cabinet

Crap! I need new glasses. I misread 826 as 846. If you can find a copy of, 'How To Build Speaker Enclosures' by Don Davis, you will find a drawing for building the 831 Capistrano. That box was loaded with the 803 & 811. In that design, ALTEC vented around the horn. I built a pair several years ago, but used different tuning vented out the bottom and loaded them with the GPA 604-8H III.

Sorry about that. When I found your thread I was on another forum thread chatting with someone about his Valencias.

H.F.

Horn Fanatic
12-19-2015, 06:26 AM
I found my copy of Davis' book. Your components were used in this model. I built a pair of these. You don't have to make exact copies, but you can use the print to duplicate the volume and venting.

Earl K
12-19-2015, 09:50 AM
NICE !

Thanks for posting that .

I'm sure that set of drawings should be very useful to the OP.

Merry Christmas to You & Family!

:xmas:

:)

Horn Fanatic
12-20-2015, 02:23 AM
NICE !

Thanks for posting that .

I'm sure that set of drawings should be very useful to the OP.

Merry Christmas to You & Family!

:xmas:


:)

My pleasure. Anything I can do to to help a forum member. And Merry Christmas to you and your family also.