Leadpipe changes are something that we are requested to do fairly frequently. This customer was formerly using a Lawson leadpipe on his Paxman horn and asked us to restore the original leadpipe. We unsoldered the Lawson leadpipe and resoldered the factory leadpipe under zero pressure. Zero pressure means we do not put any pressure on the components when joining them together. This allows the tubes to vibrate freely in their natural curvature without external stresses from the braces acting on them. You can see how clean the solder joins are at the braces from the close up photos below.