Virtual labs of analog oscillator

Abstract

This paper discusses the functional system of alearning media product development; the design and implementationof a virtual lab with analog oscillatorcomprising 4 (four) practical topics of digital oscillator,namely (1) Wien Bridge oscillator, (2) Colpitts oscillator, (3)Hartley oscillator and (4) Astable Multivibrator. This VirtualLaboratory was built using Adobe Flash CS6 actionscript 3.0. It comprises several parts, they are initial page(flash scren), main page or home page, practical page and apage about the developer. This media is accessed offline on acomputer standalone based with the extension of .exe or .swfwhich is constructed by 24 frames per second (fps). Thismedia can be operated by changing the Resistor (R), Inductor(L) and Capacitor (C) components and being continuedto the plug and play from the RLC to the tool kit or trainerkit, while the output can be seen in the measuring devices;the frequecy counter and oscilloscope. The second product isa digital jobsheet as a supplementary for the practical whichcontains prequisites for conducting the practical,introduction, anatomic information of the virtual lab,directions for using e-jobsheet and the virtual lab, as well asthe practical procedures and test items for evaluation.