Suitable for all levels of electronics instruction and design Ideal for analog, digital, and microprocessor circuits Includes built-in digital function generator with continuously variable waveforms Triple output power supply for a variety of DC voltage levels Two digital pulsers for logic test circuits Global Specialties PB-503A Applications include:Opto-device circuitsOscillator circuitsFunction generator circuitsLogic circuits Circuit Design Trainer The Global Specialties PB-503A is a robust Circuit Design Trainer suitable for all levels of electronics instruction and design. The PB-503A allows students to acquire valuable hands-on lab experience by employing necessary breadboarding techniques, which provide a solid foundation in circuit experimentation, analyzing and troubleshooting. It can be used to construct basic series and parallel circuits up to the most complicated multi-stage microcomputer circuits, incorporating the latest in industrial technology.Experienced designers will also find the PB-503A an invaluable, capable and reliable instrument, suitable for the most advanced and demanding design applications. Global Specialties trainers provide the most complete platform required to enable engineers and technicians to train for careers in the rapidly growing field of electronics technology.The PB-503A is backed by Global Specialties’ industry-leading 3-year warranty. Front Panel 1. Power Switch2. PB-3, Solderless breadboard, 2250 tie points3. Fixed bus strip, connected to DC power supplies4. Positive variable AC power supply adjustment5. Negative variable AC power supply adjustment6. DC power supply binding posts7. Ground binding post8. Logic indicators9. Speaker10. BNC connector11. SPDT switches12. 1k Potentiometer13. 10k Potentiometer14. Logic switches15. BNC connector16. Debounced push buttons17.