When I was learning at the Control Data Institute in the early eightees, we worked on a computer whitch only had discrete components. no IC, only transistors, diodes, resistors and condensators. and a tore memory. there was a backbone and hundreds of small cards where pluged on, each card was a or, a nand or any logical door or a flip-flop (register). there was no keyboard nor screen, just 28 switches and 28 lights, one raw for address, the other for the data. but it was 0 and 1, the beginning of the ordinary logic are the dekatrons working on 0 and 1 (1 + 1 = 10) or working on differents level of tension ? such as in Concorde (the plane) where 1V + 1V = 2V
is this tube is only a "display" or does it have an active part of the compute process ? fot the MTX-90, if there is a gate, this is not just a display. Does it is just a light activated with a small input or rather a "transistor" ? Le vendredi 27 janvier 2023 à 10:16:53 UTC+1, Jon a écrit : > Welcome Ben, good to have you here. It's a bit difficult to know where to > start with your question on dekatrons without writing pages of stuff which > might not be on point. A good start might be to get hold of a copy of > Electronic Counting Circuits by JB Dance - that has a long chapter on > dekatrons and related tubes, and there are scans floating around (can't > remember if we have one here). Are there specific tubes you want to > understand better? > > Jon. > > On Thursday, January 26, 2023 at 10:14:24 PM UTC Terry Bowman wrote: > >> >> On Jan 26, 2023, at 4:48 PM, Benoit Tourret <[email protected]> wrote: >> >> I am looking for information about Dekatron device "as a compute device", >> what are the main differences between all the models, >> and also about the thyraton mtx-90. >> what was their first usage and so on... >> >> >> I'd like to know more about the MTX-90 as well. Have you seen these?: >> >> https://www.ebay.com/itm/175204420312 >> >> >> Terry Bowman, KA4HJH >> "The Mac Doctor" >> >> https://www.astarcloseup.com >> >> “...the book said something astonishing, a very big thought. The stars, >> it said, were suns but very far away. The Sun was a star but close >> up.”—Carl Sagan, "The Backbone Of Night", *Cosmos*, 1980 >> >> >> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/65fcc7cd-6766-4d82-b199-2c8c550e9997n%40googlegroups.com.
