Thermionic Tube Control of Theater Lighting

The development of thermionic tubes has opened an entirely new field in control of theater lighting. This development has made possible the obtaining of preset dimming proportional dimming, and a small compact switchboard such as has been heretofore impossible. — The preset dimming feature allows an operation whereby a board may be set up for any desired number of effects in advance, so that these effects may be called for at the will of the operator by operating a single control. This feature might be termed an ability of the switchboard to learn effects and bring them out when called upon by its master, the operator. — Proportional dimming, a new feature, allows the lights to be controlled in such a manner that they may be dimmed out in combinations while retaining the same color tone throughout the dimming process. — The third desirable feature is that a small compact control board may be so arranged that it can be placed as desired in the orchestra pit, or some similar location so that the operator becomes a light artist, taking his place in the performance along with the organist or other artists.

Print ISSN

0097-5834

Published

1932-01

Content type

Original Research

DOI

10.5594/J10183