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let& #39;s take apart this old TV camera! 
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just 4 screws...
woah, that& #39;s a lot of boards
so many adjustment trimmers! these were a royal pain to align!
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the light from the lens goes through a beam splitting prism and three color filters. each filtered image goes into a vidicon tube. notice all the adjustment screws? yeah what a pain to align.
there& #39;s a delay line on this board
it can generate color bars!
the other side opens up too. more trimmers. https://abs.twimg.com/emoji/v2/... draggable="false" alt="🤪" title="Zany face" aria-label="Emoji: Zany face">
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the camera is designed to rest only on the right shoulder. lol.
but wait! take out two screws and you can flip the shoulder rest around!
I got a lens for this camera!
the motorized part comes off. I need to look at the aperture motor which seems to have gotten stuck
lots of wiring inside.
looks like this button& #39;s rubber cap melted
and this slide switch cap is in the process of melting. I& #39;ll try to 3D print a replacement.
this camera desperately needs an alignment. time to figure out how to do that.
wow it& #39;s really far off
better. I& #39;m doing red first, blue next
i& #39;m consulting an expert now. he once told me how he had to spend hours adjusting similar cameras, so now i get to experience that too, only without any time pressure.
working on fixing the lens electronics. the zoom buttons don& #39;t seem to do anything
ok here& #39;s an electrical puzzle. this center-sprung zoom button has 4 terminals and must have potentiometers inside, but how are they connected? I made a table of resistances for all combinations of pins with the control in different positions. can you figure it out?
I can& #39;t open the potentiometer without damaging it since it& #39;s glued shut. this is really bothering me now lol
all right, time to crack this nut
close-up of the resistive pattern
now this makes sense. terminal 3 is just a fixed center tap.
check out the brushes! usually it& #39;s all stamped out of the same springy copper. this must have been expensive.
