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The PB-503 is our time-tested workhorse designed for all levels of electronics instruction and prototyping. Utilizing the PB-503, students can create and implement their own circuits onto the breadboard, which is removable for multiple student usage in lab settings. For both series and parallel circuits, the PB-503 can also handle much more sophisticated multi-stage microcomputer circuits. Multiple features in one complete test instrument can save hundreds of dollars necessary when purchasing individual units.
Power
3-wire AC line input (120 V, 60 Hz typical) with power-on indicator
Available in 220-240 VAC @ 50 Hz
Available in 220-240 VAC @ 50 Hz
Fixed DC Output
+5 V @ 1.0 A, ripple <5 mV
Variable DC Output
+1.3 V to +15 V @ 0.5 A, ripple <5 mV
Variable DC Output
-1.3 V to -15 V @ 0.5 A, ripple <5 mV
Frequency Range
0.1 Hz to 100 kHz in six ranges
Output Voltage
0 to ±10 V (20 Vpp)
Output Impedance
600 Ω (except TTL)
Output Current
10 mA maximum, short circuit protected
Output Waveforms
Sine, square, triangle
Sine Wave
Distortion <3% (10 Hz to 100 kHz)
TTL Pulse
Rise and fall time <25 nS
Drive to 10 TTL loads
Drive to 10 TTL loads
Square Wave
Distortion <3% (10 Hz to 100 kHz)
Logic Indicators
8 LEDs, active high, 1.4 volt (nominal) threshold, input protected to ±20 volts
Debounced Push-Button (Pulsers)
Two push-button-operated, open-collector output pulsers, each with one normally-open, one normally-closed output. Each output can sink up to 250 mA
Potentiometers
1 kΩ and 10 kΩ, all leads available and uncommitted
BNC Connectors
Two BNC connectors, pin available and uncommitted, shell connected to ground
Switches
Two SPDT slide switches, all leads available and uncommitted
8-pole DIP switch: one side of all eight switches connected and switchable to +5 V or ground, other side of all eight switches separate, available, and uncommitted
8-pole DIP switch: one side of all eight switches connected and switchable to +5 V or ground, other side of all eight switches separate, available, and uncommitted
Speaker
0.25 W, 8 Ω
Breadboarding Area
Three UBS-100 sockets with 840 tie-points each for a total of 2520 uncommitted tie-points
Two QT-59B bus strips internally connected to power and ground
Fifty tie-points each for +5 V, ±1.3 V to ±15 V, and ground
Two QT-59B bus strips internally connected to power and ground
Fifty tie-points each for +5 V, ±1.3 V to ±15 V, and ground
Enclosure
High-impact molded case
Weight
7 lbs
Overall Dimensions
6.5 in H x 16 in W x 11.5 in D
Warranty
3 Years
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