Posted by Tim Holloway [69.54.28.229] on Tuesday, May 07, 2013 at 21:23:24 :
In Reply to: My home made diaphragm is 3 years old. posted by Chris Case [75.36.33.240] on Tuesday, May 07, 2013 at 18:23:51 :
Hi Chris,
I believe it is riveted, and as Steve pointed out, bigger.
Thanks,
Tim