Technical stuff

copyright North Somerset Museum 2003

This material is scanned from the papers held by the museum with their permission and, as such, is their copyright.

There is a technical notebook, belonging to Mr Mulholland in the archive with  a range of photographs, notes and diagrams. The cable blueprint also comes from this. A sample of some of the more technical entries is shown here.

Local correction notes. These describe how the signal, reduced to a series of pulses by capacitative coupling is restored to the original keying signal. (At least that's how I read it.)

A sample from the notebook recording some measurements taken in 1928

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