Recent content by gamelektro

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    DS1621 pc thermometer

    i made the project DS1621 pc thermometer From electronics-lab.com http://www.electronics-lab.com/proje...010/index.html or From http://www.riccibitti.com/pc_therm.htm i'm a newbie for electronics so There is something i want to ask? 1. about voltage limiters (R1, DZ2, R2, DZ1) on the SCL...
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    project DS1621 pc thermometer From electronics-lab.com ????

    i made the project DS1621 pc thermometer From electronics-lab.com http://www.electronics-lab.com/projects/pc/010/index.html i'm a newbie for electronics so There is something i want to ask? 1. about voltage limiters (R1, DZ2, R2, DZ1)  on the SCL clock input and SDA data input. how  to look...
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    DS1621 pc thermometer !!!! about the voltage limit in SCL and SDA input?????

    i made the project DS1621 pc thermometer http://www.electronics-lab.com/projects/pc/010/index.html There is something i want to ask? 1. about voltage limiters (R1, DZ2, R2, DZ1)  on the SCL clock input and SDA data input. how  to look for the value for resistor and dioda zener for that...
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    Voltage Limiter in DS1621 pc thermometer

    i made the project DS1621 pc thermometer http://www.electronics-lab.com/projects/pc/010/index.html There is something i want to ask? 1. about voltage limiters (R1, DZ2, R2, DZ1)  on the SCL clock input and SDA data input. how  to look for the value for resistor and dioda zener for that...
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    Need Help Voltage Regulator 12 vDC using 7812

    Hello Mr, what type trafo must i used? Trafo With the CT ( Center Tap ) or Without CT.? The trafo 12v/1,5Amp not sold In my country, there only have  12v/1Amp. I Have a trafo 12v/1 amp without a CT ( I buy it this morning) and 12v/300mA with CT ( already have it ). So Mr which must i choose...
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    Need Help Voltage Regulator 12 vDC using 7812

    C1 = 2000uF C2 = ..?.. C3 = ..?.. D1 -D4 = what type diode must i use? 1N4001 or 1N4004 Please Tell me the value for C2 and C3 from the picture
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    Need Help Voltage Regulator 12 vDC using 7812

    I need Voltage regulator from ac to dc 12 v but using 7812 please tell me the schematic circuit? or where i can download the schematic
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    DS1621 pc thermometer

    http://www.electronics-lab.com/projects/pc/010/index.html I can't find the lm 2936-z5 .can 78L05 powered the 2 IC ds1621 without external volt ???
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    DS1621 pc thermometer

    I look the project in Electronic-Lab.com it's about DS1621 pc thermometer.  http://www.electronics-lab.com/projects/pc/010/index.html i need to know full explanation about the schematic, please tell me how ds1621 pc thermometer  work.  i didn't get understand what  function the diode zener in...
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