--- In Electronics_101@..., "upand_at_them"
<upand_at_them@y...> wrote:
Is that a power supply bolted to the top-left corner of your
breadboard, or just switches? And what's the metal post at the top-
right corner?
In the lower left corner of the breadboard there is a bracket that
holds a DB-9F connector, a momentary switch (for reset, typically), a
6mm power jack (for a wall wart supply) and a switch for the power.
In the upper left corner, an LM7805 is fastened to the aluminum base
of the breadboard (it's located just above the blue capacitor). The
regulator's input is provided by a wall wart plugged into the power
jack and it supplies power to the breadboard.
The metal post sticking up in the top left corner is a ground pin
that is attached to a banana plug which is plugged into the 5-way
binding post. The binding post is connected to ground so this pin
provides a convenient place to attach a 'scope probe ground or meter
lead, etc.
I have several breadboards set up like this and find it quite handy.
