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Old 8th Dec 2018, 1:11 pm   #9
1100 man
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Join Date: Apr 2016
Location: Ventnor, Isle of Wight, & Great Dunmow, Essex, UK.
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Default Re: 1938 Murphy A56V television restoration

Quote:
Peter mentions the appallingly short life of Mazda tubes at that time. There were numerous complaints from Murphy dealers writing in the Murphy Service News. Apparently Ediswan knew there was a serious problem but just stated that 'the situation should get better in the future'.
I recently watched a fascinating film (Made for life on the BVWS 2006 DVD) about Mullard CRT production. The amount of different processes involved and the complexity of the machinery used was amazing. It really did look like they took as much care as they could to ensure a quality end product. After all that effort to end up with thousands of prematurely failing tubes was a real shame. I assume Mazda production used much the same processes but suffered different failure modes.
Unfortunately, 'the situation should get better in the future', sums up the attitude of much of British manufacturing at the time- the BMC was much the same! The Japanese would have been horrified at the idea of continuing to supply products with such a high failure rate, often for years!

Great write up and restoration of a real basket case set. Well done!

All the best
Nick
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