this is only the beginning for this project
we need more information then we will do all the bays for Colossus later on
so stay tune LOL
happy cl
I began working on the beadstead
but I got 2 different type so may be one for the MARK I and another one for the Mark II
we need more info on this
happy cl
Attachments
The bedstead and the paper tape mechanism is very mysterious to me. I wonder why they used so many wheels and why it is double sided. And despite that it looks like it had only one photo cell. :spin::spin:
there was 13 photocells !
1 bit for the main clock
10 bits data = 2 X 5 bits of info
1 bit for stop
1 bit for start
total = 13 bits
but not certain why the box has 12 photocells
have to ask questions on that one
reading 2 codes/ characters at same time !
and for paper or magnetic tape reader usually there are more then 2 wheels need to compensate for accelerations and speed control
but that is advance mechanical design !
and there are 2 bedstead but you can select only one.
this allowed to prepare another paper on the other one to get ready to process it
happy bl
to know more how it works you can also read this site here
http://www.colossus-computer.com/colossus1.html
happy bl
here is one example for doing some color lines on elec wire
this is done with a simple curve
happy cl
Attachments
working on the phototube used to read the paper at 5000 characters / second or baud rate
thanks
happy cl
working on the phototube used to read the paper at 5000 characters / second or baud rate
thanks
happy cl
Attachments
here is first test with real phototubes on the paper reader machine
but still uncertain how many there was
happy cl
