Global Specialties PB-505 - Manual - Manual (Page 9)

9
INTRODUCTION
The PB-505 Advanced Analog/Digital Electronic Design Workstation, is a versatile,
time-saving tool for circuit designers engineers, engineering technicians, students, and
hobbyists. A large breadboard area and a wide choice of built-in circuit accessories
allow rapid and accurate construction of virtually any type of analog or digital circuit.
The PB-505 is designed to withstand the toughest treatment. It is constructed with the
highest quality components available. Durable slide switches are mounted below
surface to insure long life. All LED indicators are also sub surface to provide quick
indication and durability. Selector switches are high quality rotary type as are all
potentiometers. Rugged interface sockets securely bolted to the front panel provide
quick connection to the convenient built-in circuits.
Circuit power is provided by three power supplies; two variable, and on fixed. The
circuit breadboard area includes over 3300 contact points. A multiple-waveform
function generator supplies sine, triangle, and square wave output for analog circuits. A
built-in speaker may be used for analog output.
Outputs also include a TTL-level square wave generator, two debounced pushbutton
switches, and a bank of eight logic switches. Eight logic indicators may be used to
display high and low logic levels. A built-in logic probe is useful in circuit
troubleshooting and two BCD to 7 segment decoder/ drivers and LED's may be used in
circuit designs.
Two built-in potentiometers and two SPDT switches are provided for circuit control
and adjustment. Connections to external test equipment or signal source may be
using the BNC connector on the PB-505.
The PB-505 eliminates the clutter and confusion that often results when constructing
sophisticated circuits. Alligator clips and similar connectors are seldom needed.
Sockets on the PB-505 allow insertion of components of wires of up to 20 gauge.
A detailed panel layout and description of the PB-505is given in the section "Description
of Individual Features".