Maker space of STEM land is used for building new things based on Electrical or Electronics ( sometimes 3D). As the first step, students started to learn soldering using veda kits (soldering kits). One of students ( Yuvaraj, from 8th grade) soldered the kit of Harmonium. Unfortunately that did not work. So we simulated the circuit first in order to make sure there is no bug in that kit design. As expected no bug in the design.
Harmonium simulation file.
Then started debugging the circuit and found the bug in placement of the IC ( Flipped). Now Yuvaraj happy!!!!.