Designs Department is dealing with the programme paths and SCPD with the
switching, routing, monitoring and intercom functions.
A steady succession of design work has been required both for mains and
A new version of Part 11 of Registered Designs and Coded Equipment is
being prepared and this will provide transformer users with up-to-date
information on the range of BBC transformers already designed.
Equipment and Component_Appraisal
The assessment of commercial equipment and components for SCPD
continues. In particular, accelerated life testing has been carried out
to select rotary and push-button switches for the continuity desk
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