KELVIN® DC Troubleshooting Trainer™

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KELVIN® Troubleshooting Trainers™ are ideal for middle school students and up. When working within the field of electronics, students should know how to troubleshoot, evaluate, and repair electronic circuitry. The KELVIN® Troubleshooting Trainers™ are inexpensive and easy to set-up because they require no wiring or soldering.

Using troubleshooting and problem-solving procedures, KELVIN® Troubleshooting Trainers™ show students how to find a problem on a PC board and then fix it. The trainers were developed to make teaching troubleshooting fast, easy, and effective - with actual electronic equipment, hardware, and pre-wired circuits.

According to the experiments, the teacher inserts a problem into the circuit using DIP switches. By following the circuits and measuring the components, students then isolate the trouble and fix it using problem-solving techniques and by resetting the DIP switches. System concept and student manuals developed by Lou Frenzel.

The assembled DC Troubleshooting Trainer™ includes: Pre-Wired Printed Circuit Boards (8-1/2 x 11 in.); 3-Ring Storage Binder; Working Electronic Circuits with DIP Switches; Student Lab Manuals with experiments and tests; and a Teacher's Guide with detailed, documented faults.

15 Problem-Solving Labs Cover:

  • Series/Parallel Circuits
  • Voltage Divider with Thermistor
  • Voltage Divider with Pot
  • Series Dropping Resistor w/ LED
  • Series Traces
  • Parallel Traces
  • Adjustable Bridge Circuits
  • Dual Voltage Source Circuits
  • Resistance Circuits in IC Form
  • 2-Way Switch Circuit with Bulb
  • Capacitor Charging/Discharging
  • Time Constant
  • DC Diode Biasing
  • DC Inductor Effects
  • Transistor Switch Relay with LED
  • Photoresistive Input Control
  • 555 IC Timer as Stable LED Flasher

"As a very dedicated and cost conscious electronics instructor, I had previously ordered a single DC trainer from KELVIN® for the purpose of analyzing and testing its classroom potential. Since then, I have ordered one for each student. This trainer has exactly what the textbooks and traditional theory labs are missing; instructor-controlled, fault inserted trainers which challenge the students to learn about procedural troubleshooting and problem- solving habits at the very beginning of their technical training." - David L. Miles, High School Electronics Teacher, Salisbury, Maryland