Monthly Update, February 2018
Wireless in Wales Museum has a single television receiver, the Bush TV12B which has a nine inch screen, 18 valves and a cathode ray tube. This is the television you usually see on television programmes depicting life in the early 1950's. It had a large number of controls to control focus, brightness, contrast etc., and these had to be adjusted as the night wore on and as the components became hotter.
This television receiver was released in September 1949, at the same time as the start of BBC Television from Sutton Coldfield in the Midlands, the first time television was extended outside London. It was designed to receive television signals from Sutton Coldfield on channel 4 VHF only, and it worked only in that region. By 1950, the BBC was beginning to establish a network of television stations across the country, and Bush produced the TV22 which was able to receive BBC TV from anywhere - on channel 5 VHF in Cardiff for example.
In 1955, independent broadcasting began on new channels, 6 to 13, which meant that the old BBC only television sets could not receive the new broadcasts. So a range of converters, set top boxes, were produced to plug into the televisions, so that they could receive ITV. Here is a picture of a 'set top box' for the Murphy television set.
A warm welcome to everyone to the next lectures in our series:
February 16th, "Broadcasting in the 1980's at Radio Havana Cuba", by Lila Haines.
March 16th, "Development of the 78RPM Gramophone Record, by David Crawford, Curator of the Museum. This will be the David Edward Hughes annual lecture.
April 20th, "The Sea Tragedies of the 'Ocean Monarch'and the 'Lelia'", by Tony Griffiths and Keith Mountain.
April 27th, a Welsh lecture on "Sir T. H. Parry-Williams and the Subconcious" by Ioan Talfryn.
May 18th, "Mining in North East Wales", by Alan Jones.
The lectures start at 7.00 p.m. and there are light refreshments to follow.