White Protoboards for Breadboarding

From http://engr-www.unl.edu/ee/eeshop/proto.html

"Nobody does electronics work for long without running into the classic white plastic prototyping breadboard, made famous by Global. These are the de facto standard for whipping up a circuit just to see if it works. They do a good job of this and I don't know what I'd do without them, but remember that they have limitations.

• Breadboard connections are not as good as wire-wrapped or soldered connections. If you are doing designs with high frequencies or high currents (anything above 100 mA) these connections may not be reliable.
• Breadboards tend to wear out with use, especially if you've tried to jam some fat resistor wires into the holes. This makes the connections even less reliable or may make some holes unusable. If you are having problems with your circuit, use an ohmmeter to make sure there really is continuity where you think there is.
• Breadboards don't always let you supply power reliably with the power buss along their edges. Make sure you use despiking capacitors on all your chips on the breadboard. "

Also:

• Regulated Power Supply, 7805, 5 volts

Questions:

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