Corona Blue
04-22-2011, 07:19 PM
Hi everyone-
New guy on the forum. Found you in searching out info on these oddball (apparently) 70's era hi-fi/small PA speakers...
I'm not sure if they are DIY cabinets of if they were some kind of custom 70's era PA cabinet. They are loaded with JBL 123A-1 (8 ohm) woofers and an unmarked horn. And they use the Altec 32343 network. They sound pretty good as a small hi-fi or PA but I found that the caps were leaky in the HF comp network. Caps are black plastic, resin sealed, marked "TSI" and the values are: 3uf/75V; 6uf/100V; 8uf/75V; 18uf/50V (one of the 18uf caps had completely grenaded... shown in pic).
http://i863.photobucket.com/albums/ab198/sixtringrazorboy/Hi-Fi/Cabinet.jpg
http://i863.photobucket.com/albums/ab198/sixtringrazorboy/Hi-Fi/123a-1.jpg
http://i863.photobucket.com/albums/ab198/sixtringrazorboy/Hi-Fi/Horn.jpg
http://i863.photobucket.com/albums/ab198/sixtringrazorboy/Hi-Fi/BlownCap.jpg
I don't know about the horn. I found no markings on it. The black rear cover is cast aluminum and the horn is plastic.
The cabinet is well made from 3/4 inch birch ply and its outside dimensions are: 24" (H) x 16.5" (W) x 12" (D) with a 3/4" vent across the lower part of baffle board. Does this resemble something that Altec/Lansing produced? I seem to recognize this grouping of components but I can't remember what speaker... 9800 series???
I was looking around here for the schematic for the cross-over network, but did not find it. Was this network known by another number maybe???
I was planning on re-capping this network, and thought I would ask for opinions on what caps people think would be best. Not a great deal of space inside these network boxes, so I was considering Solen metalized polypropylene, but have never used them. Good, bad, or indifferent?
Thanks for any help!
Allen
New guy on the forum. Found you in searching out info on these oddball (apparently) 70's era hi-fi/small PA speakers...
I'm not sure if they are DIY cabinets of if they were some kind of custom 70's era PA cabinet. They are loaded with JBL 123A-1 (8 ohm) woofers and an unmarked horn. And they use the Altec 32343 network. They sound pretty good as a small hi-fi or PA but I found that the caps were leaky in the HF comp network. Caps are black plastic, resin sealed, marked "TSI" and the values are: 3uf/75V; 6uf/100V; 8uf/75V; 18uf/50V (one of the 18uf caps had completely grenaded... shown in pic).
http://i863.photobucket.com/albums/ab198/sixtringrazorboy/Hi-Fi/Cabinet.jpg
http://i863.photobucket.com/albums/ab198/sixtringrazorboy/Hi-Fi/123a-1.jpg
http://i863.photobucket.com/albums/ab198/sixtringrazorboy/Hi-Fi/Horn.jpg
http://i863.photobucket.com/albums/ab198/sixtringrazorboy/Hi-Fi/BlownCap.jpg
I don't know about the horn. I found no markings on it. The black rear cover is cast aluminum and the horn is plastic.
The cabinet is well made from 3/4 inch birch ply and its outside dimensions are: 24" (H) x 16.5" (W) x 12" (D) with a 3/4" vent across the lower part of baffle board. Does this resemble something that Altec/Lansing produced? I seem to recognize this grouping of components but I can't remember what speaker... 9800 series???
I was looking around here for the schematic for the cross-over network, but did not find it. Was this network known by another number maybe???
I was planning on re-capping this network, and thought I would ask for opinions on what caps people think would be best. Not a great deal of space inside these network boxes, so I was considering Solen metalized polypropylene, but have never used them. Good, bad, or indifferent?
Thanks for any help!
Allen