Have any of you ever heard of "GB 522" as a type of dielectric board material? I have a drawing from 1968 that calls out "GB 522, 1/16 THK, Close Tol 1OZ CUY 1 Side." Its an RF board so I'm guessing that the material is something like Duroid but I'm not sure.
Any help will be appreciated!
Thanks,
Eric Kalgren
Electrical Engineer
Cobham Defense Electronic Systems
Continental Microwave Division
11 Continental Drive
Exeter, NH 03833 USA
Tel: 603-775-5200
Fax: 603-775-5201
E-mail:[log in to unmask]<mailto:[log in to unmask]>
Website: http://www.cobhamdes.com<http://www.cobhamdes.com/>
<mailto:[log in to unmask]>
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