27-03-2011, 02:27 PM
I don't think it will be an easy question to answer, new valve/design production must have finished around 1972.
I would imagine designers at Mullard and Mazda would have been aware of the impending move to transistors and geared their existing production runs to be scaled back accordingly, and existing stocks would be enough to satisfy the TV manufacturers of the time who were using hybrids.
So i'm guessing the last Hybrids TV's that used Valves/Transistors, their line-up would contain the last designed and produced valves. So books out lads a bit of research coming up. Unfortunately or Fortunately, I was 9 in 72 so the best placed people to know will be the TV engineers on here who were in the trade at the time
Chris
I would imagine designers at Mullard and Mazda would have been aware of the impending move to transistors and geared their existing production runs to be scaled back accordingly, and existing stocks would be enough to satisfy the TV manufacturers of the time who were using hybrids.
So i'm guessing the last Hybrids TV's that used Valves/Transistors, their line-up would contain the last designed and produced valves. So books out lads a bit of research coming up. Unfortunately or Fortunately, I was 9 in 72 so the best placed people to know will be the TV engineers on here who were in the trade at the time
Chris
