Morning
I came in and got to work on the coke demo board. I got all the components I was going to need, then I went to town on soldering them in place. No real issues came up during this process. I went to the electric shop and grabbed a screw for the heat sink, a Square D push button, and a length of wire. I had the board ready to go by lunch time.
Afternoon
The board was not working. Everything should have been fine, but the SCR was not triggered. I should have been seeing a fair amount of voltage (~10 volts) over the load resistor, but it was all over the SCR instead. It appeared that it wasn't being triggered even though everything was right on the board. I kept trying to fire the SCR with no luck. Finally I put in the other SCR IC to check, and the board still didn't work. Something must be wrong conceptually with this setup. I am not really sure what it could be, but I am thinking about it. I looked up some part numbers for different SCR's from Newark.
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