need help with altec diaphragm numbers

[rk77]

I have some NOS Altec (and perhaps non Altec) diaphragms in my stock room and don't remember what went with what.
The numbers are: 20275 , 391324 , 391440 ,
391442 , 21545 , 391905 , 18789 , 391037 , 4215 , 35480 , 9798339 , G780 .
If anyone has any info as to which diaphragms go with which model speaker, I would be very grateful for the information.
Thank you and best wishes

[cclark65]

The information you requested is posted right here on this site. There is a link on the main page to the Diaphragm/Voice Coil part numbers...

http://nleinternet.net/alteclansingu...ial/Diavc.html

[Todd W. White]

Go to the master cross-reference list chart and you will be able to determine what drivers your parts fit into -

http://nleinternet.net/alteclansingu...ial/Diavc.html