By Dan Cranefield, Senior Engineering Manager, BBC Tel OBs
After the war BBC Television Outside Broadcasts (Tel OBs) operated from their base at the Palace of Arts in Wembley, one of the substantial buildings which were built there specially for the British Empire Exhibition in 1924. Some of these buildings were put to other uses later on.
All outside broadcast (OB) units need electric power but supplying it lacks the interest of the OB trucks themselves. At BECG our thoughts turned to this vital subject with our acquisition of a 1953 BBC generator truck. In this article, we survey the various ways in which power was provided for BBC OB trucks and look in particular at the 10 generator trucks that the BBC operated.
Something a little different, but still with a link to older equipment and preservation, Trevor Brown reports on his project to interface a Grass Valley GVG-100 control surface to the vMix software. This is just a synopsis of something he has been working on for nearly 2 years, the full reports and investigations can be found in the free electronic issues of CQ-DATV which are available from the link above, the articles start in issue 68 – February 2019.
Trevor Brown has been documenting his work in breathing new technology into a vintage Grass Valley video mixing console; you can read the entire series of articles in his free CQ-DATV electronic magazines, starting in issue 68.
This led me to think about the even older history of video mixers generally.
TV in London is 65 years old in 2020, remaining vital throughout a period of external pressures as well as the changing viewing habits of the population. In this article, I look at the birth and evolution of London Weekend Television, and at the role that technology played in developing its sport and drama output.
There is more to consider when providing power for an outside broadcast unit than arriving on-site and plugging into the nearest socket outlet. Safety and compliance with regulations concerning use of power need to be taken into account, particularly when the public are present. There are some complex technical and legal issues involved.