Global Specialties PB-204 - Manual - Manual (Page 7)

7
OPERATING INSTRUCTIONS
Uncoil the power cord and plug the PB-204 into a 115V AC 60 Hz outlet. Push the
power switch on. The power supply bank is now active, providing +5 Volts at 1 Amp for
digital circuitry, and +12 and -12 Volt supplies at 0.5 Amp for linear and op-amp
circuitry. All supplies are regulated and current limited for maximum performance and
safety. The black binding post is common ground to all power supplies.
POWER DISTRIBUTION AND JUMPER WIRES
Ten distribution buses (solderless breadboard strips) are provided on each PB-203A.
They include two horizontal buses with 40 contacts (80 total tie points) each and
eight vertical buses with 50 contacts each (400 total tie points).
Jumper wires should be #22 gauge solid hook-up wire. Global suggests that the
insulation on the jumper wires be stripped 1/2" to 3/8" from each end to ensure easy
insertion into the solderless breadboards. After you’ve built up a few circuits, you’ll have
a good collection of pre-stripped jumper wires. Pre-formed wires in various sizes are
also available from Global Specialties (please visit web site for available options and
accessories).
COMPONENT INSERTION
ICs are mounted by lining up the leads with the contact holes on each side of the center
of the solderless breadboard, then pressing gently at the center of the IC until it clicks
into position. Withdrawing the IC can be tricky. You should use a thin-bladed
Figure 1. Power Distribution Example