A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Paul Dolkas
Date: 2016 Sep 11, 13:32 -0700
And this adjustable chamber fits into a standard A-12?
From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of Ken Gebhart
Sent: Friday, September 09, 2016 12:59 PM
Subject: [NavList] Re: Restored WWII Link A-12 Bubble Sextant F.S.
No, you cannot change the size on yours. The adjustable chamber has a knurled knob which changes pressure on a diaphragm to make the change.