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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Refilling Mk IXA Bubble Sextant - Lessons Learnt
From: Herbert Prinz
Date: 2004 Mar 6, 10:41 -0500
From: Herbert Prinz
Date: 2004 Mar 6, 10:41 -0500
Jared Sherman wrote: > If anyone is doing this and then resoldering to close the tube, note that > "silver solder" generally has a lower melting point than conventional > lead-tin solder, and probably would be the better choice as it would allow > less heat to be used. This is no longer relevant to Zvi, whose bubble sextant already "works like a dream" again. But just for the record, silver solder has a HIGHER melting point than lead-tin. Despite its other advantages for electronic circuits, this makes it trickier to work with, particular in the vicinity of heat sensitive components. It's the very reason why the inexperienced often avoid it. Also, it requires a flux that might contaminate the liquid in the tube. Herbert Prinz
