Mark,
You've never built a circuit on a block of wood? Or tacked leads together
and sort of crumpled the thing together inside a little box?
Of course, but as circuits get complex the construction method can impact the
viability of the circuit. Did it fail because the design was flawed or because
it was poorly constructed. Beside proto boards do a great job and are more
dependable than things crumpled inside of boxes.
...circuit out on the
cardboard, punch holes through it, insert the components, and solder 'em
together on the back.
A circuit worth building is worth building well. I'm not talking about building
a pc board on the first pass, and depending on the complexity not even a perf
board. Even a simple series parallel circuit is better on a proto board.
Inexperienced learners have a terrible time relating components to a circuit.
Believe me after seventeen years I know. Today's electronics students don't seem
to have the 'seat of your pants' skill to conceive something and carry it off,
especially something as abstract as electronics. If they are building a
mechanism some students will be able to see how it works when they look at it.
Electrical devices are a different story. So a proto board can be used to orient
the parts as closely as they are drawn in a schematic diagram. Then the diagram
and the real circuit are similar and the student needn't bridge such a large
gap.
Jim
Looks like hell but seems to last forever. You kind
of want to watch it with high-wattage resistors, though.
M Kinsler
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