Global Specialties PB-503 - Manual - Manual (Page 9)

9
INTRODUCTION
The PB-503 Analog/Digital Electronic Workstation is a versatile, time-saving tool for
circuit designers, 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.
Circuit power is provided by three power supplies, two variable and one fixed. The
circuit breadboard area includes over 2500 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 (available when function
generator is set to square wave), two debounced pushbutton switches, and a bank of
eight logic switches. Eight logic indicators may be used to display high and low logic
levels. Two built-in potentiometers and two SPDT switches are provided for circuit
control and adjustment. Connections to external test equipment or signal sources may
be made using the two BNC connectors on the PB-503.
The PB-503 eliminates the clutter and confusion that often results when constructing
sophisticated circuits. Alligator clips and similar connectors are seldom needed. Sockets
on the PB-503 allow insertion of components or wires of up to 20 gauge.
A detailed panel layout and description of the PB-503 is given in the section
"Description of Individual Features".