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Block Transfer Computation Keyboard

I should clarify and give credit where I ran across that carpet sweeper bit.
https://mobile.twitter.com/claytonhickman/status/520556392193998848

The reason I offer things like a teletype, character generator or teleprompter keyboard is these are the sorts of things that most vintage keyboard and hardware collectors probably wouldn't ever run across anymore. If they were anyplace today they'd be in a museum of broadcast gear or in forgotten basement attic.
In the early 80s, right around the time I was discovering Doctor Who in college we had such a storeroom of cast of "donations" of 70s & earlier equipment from tv stations and our PBS broadcaster that had been piling up like a reverse value hord. We cannibalized multiple U-Matic 3/4" tape decks to make edit suites, had two Chryon like character generators that had keyboards like this designed by people who didn't type for a living & so on. There were boxes & boxes of orphans - cables and bits the seemed to go to nothing else. Bins & crates of stuff like that keyboard. I feel sure 35+ years ago I could have very well held a keyboard like that in my hand as late many a night we tinkered with stuff to see if it worked. I know by 1985 a lot of it went into the dumpster to make room in the studio.  If only I had the malice of forethought to bury it all in a time capsule for today it would be valuable.

So anyone that knows some old irascible cranks who used to work in tv back in the 70s might hit paydirt asking them instead of vintage computer collectors. At 56 I'm too young to go back the crucial decade as I was a babe from the sticks blinded by the newfangled Betacam & that modern marvel Macintosh that was sucking the oxygen from my brain cells.
 
Hi,
Has anyone found out where this keyboard orginated from please?
I've got one here just like the picture in post 12 and can confirm the back of it looks like the picture in post 18.
Unfortunately someone has modded it and fitted some extra leds...
Cheers,
Gavin :)

Keyboard2.jpg
 
I've been doing some very broad and mostly fruitless digging over the past few days, but finally found some relevant information:

Gavinbat's keyboard (and the earlier Getty Images one) are indeed Honeywell, and specifically the keyboard for the "K-700 Basic Keytape Device" or very similar ones.

https://archive.org/details/keyingmagtapeforcomputers_1968/page/n209/mode/1up
1747246676903.png

I haven't yet found any information on later models in the series, but with a name, discovering the one in the show seems more plausible.
 
Tried searching "keytape" on Wikimedia Commons after finding only a few grainy pictures with the correct keycaps on the Internet Archive, which led me to this:

1747411025039.png

Sadly, I cannot find an unobscured image in this set. The punctuation doesn't appear to match perfectly (going by the placements of the greater than/less than signs, visible in the Logopolis screenshot), but it looks closer than the Type 40 Manual diagram.
 
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I've realized on inspection that the punctuation on the keys on that first Getty Images keyboard is almost correct, unlike the Quebecois one there. Here's a source that lists almost the same characters, making it possible to clearly identify the blurry ones: https://archive.org/details/bitsavers_auerbachAutionsReportsVol21970_75080189/page/n75/mode/2up. The remaining differences are likely UK-specific: it looks like the dollar sign's been replaced by the pound sign and a handful of characters got moved around.

I'm making a diagram which should be up here in the next few days, after I either figure out the last few unclear labels or give up and accept mere 95% guaranteed accuracy.
 
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