National College of Science and Technology
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Materials Use & Total Cost
Task to our project
Rosales,
Phillip Charles: My tasks on this project are to design the pcb and solder the the electronic component to the pcb.
Aldana, William: His tasks on this
project are to drill the pcb, hold the wirings of speaker
and swicthes, and he makes his group happy.
Estimo, Jayson Carlo: His tasks on this project are to
cut the pcb, and he designed the housing and test our
project.
Shout Box
The Digital Voice Message Recorder
Parts List
Semiconductors:
Ø 1 pc. of TA7368P Audio Amplifier IC
Ø 1 pc. of DS10242 Digital Voice Recorder IC
Ø 1 pc. of L7805 5 – Volt Voltage Regulator IC
Ø 1 pc. of 1N4001 1A 50V Regulator Diode
Ø 3 pcs. Red LEDs Jumbo
Resistors:
(All are 1/4W, 5% tolerance carbon
type unless specified)
Ø 1 pc. of 100K
Ø 1 pc. of 82K
Ø 1 pc. of 2K
Ø 2 pcs. of 1K
Ø 2 pcs. of 390 ohms
Ø 2 pcs. of 4.7K
Ø 1 pc. of 220K
Ø 1 pc. of 56K
Ø 1 pc. of 10K Potentiometer (mini) w/ switch
Copyright © 2007 and Design by: Phillip Charles B. Rosales