M Chitrakar talked about the "proto board", which is a trade mark, if I'm right:

http://www.globalspecialties.com/pb60.pdf

Richard, for me these breadboards are extremely useful when designing analog circuits. You can test circuit moduls extremely fast. You can change the components extremely fast and see the result. You can easily measure because you can clamp the scope probe whereever you want. There's nothing faster and more versatile than a breadboard when doing in analog electronics, means when experimenting in a frequency range where the complex impedances do not count.

On the other hand, you cannot use a breadboard, when dealing with 500MHz OPamps or fast digital circuits. Circuits, which need shortest connections between the parts or which need a solid ground plane for the ground return currents usually terribly fail, when using a breadboard.

M Chitrakar, I wouldn't apply more than what these LM78XX, LM79XX voltage regulators can deliver, means no more than 50V between adjacent contacts and no more than 1A flowing through a contact.


12A will cause a heat dissipation of about 150mW per contact, when assuming a contact resistance of 0.5mOhm (see above link). And I wouldn't experiment with a breadboard, where certain wires can carry 400V, anyway...

Kai