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oldhan

uP system, Audio DIY, Bicycle Rider

Taiwan
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oldhan

This user joined on 11/12/2017.

Things I've Built

Digital IC tester

Telphone DTMF Control SW

Digital Function generator

Digital R/C meter

89s52 voice clock

Road Bike

Tube Earphone Amp

RS-232 51/EPROM/FLASH/PIC Programmer

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Ken Yap wrote 07/09/2020 at 14:08 point

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