Generic 1.25L soda water at Foodland cost $1.
But that is enough on that exciting topic; I've been verifying my design of the computers precision, triggered Time Base on breadboard.
Attached is a pic of a small part of it operating. The Time Base is the master unit that basically controls the whole computer, generating
the logic signals to control the computers integrators (which have 3 modes; "Hold", "Initial Condition" and "Compute/Integrate"), as well as
providing a voltage ramp output representing computation time, so the solution can be displayed/plotted on an X-Y oscilloscope or on chart recorder.
I need a scope with more vertical channels...............................