Virtual Labs of Analog Oscillator


  • Syifaul Fuada Institut Teknologi Bandung (ITB)
  • Amy Hamidah Salman Institut Teknologi Bandung (ITB)



Virtual lab, analog oscillator


This paper discusses the functional system of a learning media product development; the design and implementation of a virtual lab with analog oscillator comprised of the following: i) Wien Bridge oscillator, ii) Colpitts oscillator, iii) Hartley oscillator and, iv) Astable Multivibrator. The virtual laboratory was built using Adobe Flash CS6 Action Script 3.0. This media can be accessed offline on a computer standalone based on the extension .exe or .swf and constructed with 24 frames per second (fps). This media can be operated by changing the Resistor (R), Inductor (L) and Capacitor (C) components via ‘plug and play’ to the tool-kit, or trainer kit, while the output can be seen in the measuring devices, namely: the frequnecy counter and oscilloscope. The second product is a digital jobsheet as a supplementary element for the practical, which contains prequisites for conducting practical use, introductory, and anatomic information of the virtual lab, as well as the directions for using the e-jobsheet and virtual lab, the practical procedures, and the test items for evaluation.

Author Biographies

Syifaul Fuada, Institut Teknologi Bandung (ITB)

Syifaul Fuada is currently pursuing his master’s degree in Electrical Engineering at the School of Electrical and Informatic Engineering, Institut Teknologi Bandung (ITB), Indonesia with an option in microelectronics. He was one of the top 106 Indonesian Innovators in 2014, and holds two pending patents entitled, "Solar-based helmet cell charger," and "Out-pipe inspection robot." The author's interest is analog circuitry, smart home applications, embedded systems, digital and analog ICs design, Visible Light Communication (VLC), 2D and 3D graphic design, and journalism. (email:,

Amy Hamidah Salman, Institut Teknologi Bandung (ITB)

Amy Hamidah Salman was born in Jakarta on May 22, 1956. She received her B.Eng degree in Telecommunication Engineering from the Institut Teknologi Bandung (ITB), Indonesia, in 1980 and her M.Sc (Eng) degree in Electrical, Electronic Engineering from Queen’s University, Kingston, Canada in 1990. She is a senior lecturer at ITB and is currently pursuing her doctoral degree in ITB. Her research interests include Electronic and VLSI design. (email:




How to Cite

Fuada, S., & Salman, A. H. (2016). Virtual Labs of Analog Oscillator. International Journal of Online and Biomedical Engineering (iJOE), 12(08), pp. 31–37.