Which is fine, if the case. But the fact the viewers didn't see that gives the impression to the uneducated (and there is too many of those) that it is acceptable practice. It isn't.
I had a chat with them on facebook, the back was replaced OK.
Would the modern way be to replicate a back in plastic by 3D printing it?
Yes - I agree Dave, I guess the back was missing/lost - I suppose what should have been done, was to create a replacement vented back - though what material would be used? Wood, being inflammable might be iffy, though of course - many radios of the era were made of wood .
One thing he did that you should never do, was to return that defiant without any back panel fitted. Even though with the mains isolation transformer, the chassis isn't live, there is still some nasty high voltages in there.
I watched the first first episode yesterday, they fixed a singing & dancing Pinocchio puppet, repaired a faulty modded Atari 2600 and made a new circuit board to get it working on modern TVs.
Finally, and probably the most interesting for people on here, they got working an old 1930s Defiant radio radio manufactured by the Co-Op that sold for about £10 at the time, much less than most radios, hence it being named the Defiant.
One of these - https://mullard.org/blogs/news/the-man-with-the-elctronic-brain-the-defiant-m900-radio
It was really interesting, so I am looking forward to the next episode featuring studio equipment from the Ross, and a Sinclair C5.
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