paper on design methodology factoring block design dataflow debugging time to create vs time to debug rapid prototyping vs rapid troubleshooting muralizing the cost of self-diagnostics the right amount of self-diagnositcs the cost of test jigs statistical quality control checking parameter boundaries rather than parameter spaces places where this doesn't work apparent complexity plain English time constants sockets reuseability calculus related rate problems point by point debugging -------- most popular IC's 1) 7805 5V voltage regulator 7812, 7815 2) 741 operational amplifier 3) 555 timer 4) 7400 TTL -------- the point of entry electronics education for kids audio amplifiers: http://is.gd/4jp7p analog effects digital effects popular circuits ---------- a design grid power and low frequency signals routed below the plane in the base plug-in grid RF and high frequency signals routed above the plane. rectangular topology --------- LM386 audio amplifier ------- filters: Maxim tutorial: http://is.gd/4jpv5 ------ what if a dataflow diagram could be implemented (transparently) as a digital or analog component. how could you support this in a simple way? with wires, boxes, inputs and outputs. ---- what about using FPGA's as function blocks. interconnecting FPGA's is a purely functional process hacking their internals is an imperative process, doing whatever is necessary. For example: implement QSort as a sequence of function blocks. ----------- implement a simple function block editor where the blocks can be analog or digital ------------- analog, digital, is there a third, orthogonal rep? as in, neural, using the branch tube branch construct?