Model 275 drivers - need parts

[Todd W. White]

Can you post a picture?

I don't recall this number....

[The_storyteller]

Here are a couple of shots

[Don McR]

In case you are not aware, you are asking about a JBL product on an Altec forum. Don't worry, it's not a capital offense

The 275 was introduced at the same time as the 375 in 1953. I believe it can take the same diaphragm as the LE85 that replaced it. The Ampex label means that it dates from the time that Ampex was licensed by JBL to build their designs in the mid 50's. There are some vintage JBL experts on our forum that may be able to provide more information:

http://www.audioheritage.org/html/forums/forums.htm

[The_storyteller]

Well I can't find any information on this model driver here. I knew they were old but didnt think they could pre-date the 375. They look just like the 375 but are clearly marked as a 275. the horns they are attached to are D 6973's by Ampex. Any help woudl be appreciated. I have 3 drivers and 1 has a bad diaphram that I need to replace. Any help would be appreciated.

Thanks