Looking for an Altec 846A Valencia dividing network sch.

Good morning. I am trying to find a schematic for the Altec 846a dividing network. I am in the process of restoring a pair and would like to "freshen-up" the dividing network or build a new crossover. Any assistance would be greatly appreciated.

Joe

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Originally Posted by stereo_dog

Good morning. I am trying to find a schematic for the Altec 846a dividing network. I am in the process of restoring a pair and would like to "freshen-up" the dividing network or build a new crossover. Any assistance would be greatly appreciated.

Joe

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Here's the schematic for the N800F .

http://www.hostboard.com/forums/hbmc...2013/01/10.jpg
http://www.hostboard.com/forums/hbmc...2013/01/11.jpg

:)

Very nice. Thank-you.

Don't forget to post pictures and results when you get done with your project!!Attachment 1721Attachment 1722

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Originally Posted by HeathKitPat

Don't forget to post pictures and results when you get done with your project!!Attachment 1721Attachment 1722

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Those look familiar... Parts are ordered. Should start building, soon.

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Originally Posted by Earl K

Here's the schematic for the N800F .

http://www.hostboard.com/forums/hbmc...2013/01/10.jpg
http://www.hostboard.com/forums/hbmc...2013/01/11.jpg

:)

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Thanks Earl for helping out a new member. :) Yup we love lots of Pics here... :Big smile:

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Originally Posted by stereo_dog

Those look familiar... Parts are ordered. Should start building, soon.

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Can't wait to hear (from you) your results (only wish we could hear them through the forum). There is debate about this subject, but I believe they didn't really start to sound good until the capacitors settled in. After listening on and off for a day or two I swear the sound got better!

Hi,

I can't find a source for the 25 Ohm L-Pad in this crossover diagram. Can someone recommend a place to buy it? I've tried Parts Express and Madisound. A part number would be great too.

Thanks in advance,

Terry

http://www.hostboard.com/forums/hbmc...2013/02/25.jpg

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Originally Posted by TerryE

Hi,

I can't find a source for the 25 Ohm L-Pad in this crossover diagram. Can someone recommend a place to buy it? I've tried Parts Express and Madisound. A part number would be great too.

Thanks in advance,

Terry

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The original design schematic doesn't use and Lpad. What you are looking at is a 25 ohm variable resistor. Parts express has a 16ohm Lpad #260-248 this is what I used in place of the variable resistor (potentiometer) that Altec Used.. if you look at the pictures I posted I also remote mounted my new crossovers so I drilled out the back of the cabinets to accomodate the Lpad mounts. IT was a nice clean installation that I was very happy with. Also I omitted the 20ohm R1 resistor.

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Originally Posted by LICORNE

http://www.hostboard.com/forums/hbmc...2013/02/25.jpg

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The schematic for this crossover (N800K) appears to be designed for 8ohms.. it does however show the Lpad in place.