Worcester Cathedral in Nuts and bolts Posted Friday at 16:06 Organ Builders are not usually allowed to carry out mains electrical work. Whilst any changes/additions to mains electrical installations may be specified by Organ Builders, it is generally the institute in question which is in charge of engaging contractors, arranging for the work to be carried out and signing it off. Likewise with regard to Transmission and Capture systems, the Organ Builders may specify some of the details but will buy them from specialist manufacturers. The manufacturer of Worcester's transmission also supplied systems to St. Paul's, a year or two earlier I believe, and I understand that their system was not without problems either. St. P's threw in the towel a few years ago and replaced theirs with a system by a different manufacturer so if Worcester are having problems with or replacing their system, I think it should reflect on the manufacture not the Organ Builder.