16 Mar 2014 - 2 min read
ALU Construction: Completed Control Card Full Test
The ALU Control Card is now complete and looks like this: This card was, on the whole, much simpler and quicker to put together than previous cards (despite me initially …
14 Mar 2014 - 1 min read
ALU Construction: Control Card Power Rails & Wire Wrap
I’ve been a bit short of time lately so I’ve been working on the ALU Control Card in little bursts … but after lots of these little bursts I’ve now …
04 Mar 2014 - 2 min read
ALU Construction: Control Card Header Pins & Relay Sockets
Following on from the first two successfully completed ALU cards, for logic and arithmetic, it’s time to make a start on the control card (well, actually, the LEDs and …
01 Mar 2014 - 4 min read
Sorry, I will try to rain in the terrible punning post titles. This time I wanted to share the thoughts and ideas I’ve been having around building a case to hold my …
23 Feb 2014 - 1 min read
ALU Construction: Completed Arithmetic Card Full Test
The ALU arithmetic card is now complete! The final card looks like this: As I did for the ALU logic card before I’ve put the following YouTube video together which gives …
19 Feb 2014 - 1 min read
ALU Construction: Arithmetic Card Wire Wrap 2
I’ve managed to squeeze in a couple more wire wrapping sessions this week so in this post there’s a few photos of progress so far. Inputs B and C are fully wired …
16 Feb 2014 - 2 min read
ALU Construction: Arithmetic Card Wire Wrap 1
Fear not (just in case you were for some reason) all this talk of Sketchup and enclosures and so on hasn’t totally diverted me from the main task of constructing the …
04 Feb 2014 - 2 min read
I’m taking a break … just a short one. In between all the bouts of wire wrapping for the ALU arithmetic card I’m starting to think about enclosure options …
26 Jan 2014 - 2 min read
ALU Construction: Arithmetic Card Power Rails
Another round of soldering done … this time putting down the power rails on the arithmetic card along with some soldered wire links. This is the last of the soldering …
21 Jan 2014 - 2 min read
ALU Construction: 1-bit Arithmetic Full Construction
So, as mentioned in my last post this time I’ve put in the wire links and wraps needed to test the first bit of the arithmetic card. With these in place I can make sure …
17 Jan 2014 - 2 min read
ALU Construction: Arithmetic Card Relay Sockets
It’s always a fiddly job getting the relay sockets soldered in and the ALU arithmetic card proved no exception. With this in mind I’ve been spreading the work out …
06 Jan 2014 - 2 min read
ALU Construction: Arithmetic Card Header Pins
Following on from the successful construction of the ALU logic card in my last post it’s time to start off the new year with the next ALU card (number 2 of 3 ALU cards …