Resistors Decade box - How to - Photo story ..

[Kiriakos-GR]

I will add and another three high quality pictures  ,  as proof that I had corrected my minor mistake about the 0.10mOhm ..    


.

 

[Jon Chandler]

I was actually pretty pleased when a project of mine showed up on Hack-A-Day.

And I had a real sense of accomplishment when I showed it at a local hacker space and a girl saw it and said "Wow.  Just like the one on Hack-A-Day." and I was able to correct her "No, this is the one from Hack-A-Day!

[MrPlacid]

Kiriakos-Gr, have you put your decade box to good use yet? Is it really useful to have around?

[Kiriakos-GR]

I had check  all my multimeter's  about correct calibration ,
and I have it on my bench for quick tests too.

I had use low wattage resistors on it,
and I can not use it for currents over 600mA .
And so it can be used so to " match" ( find )  the resistance value for LEDs or small DC motors.

You can find the resistor that you need so to keep an computer fan silent at easy  

The truth are that the resistors decade box, and the voltage calibrators,
are not items for daily use .

But with out them , you do have the feeling that something missing among your tools.      

[Kiriakos-GR]

It looks that my project become more famous than expected.

I just did an search on Google about decade resistors box.
And got many pictures of my own .. 

Its one are posted to several other forums ... Example:
http://www.eaglecentral.ca/forums/index.php?S=7d6c909b9a628944de0853b870f2b1c8&t=msg&th=38622

Google Link ( decade pictures ) :  http://www.google.gr/images?q=decade+resistors&hl=el&client=firefox-a&rls=org.mozilla:en-US:official&channel=s&prmd=i&source=lnms&tbs=isch:1&ei=uwngTLBNw8yzBpTG7foL&sa=X&oi=mode_link&ct=mode&ved=0CBMQ_AU&biw=1024&bih=610

[Kiriakos-GR]

 

Are you crazy !!  I got even in, at the Science Projects Archives  

I had become part of the recorded  history , about handmade electronic designs .

I bet that even Dave , he must be proud for me.  

http://science-projects.mattters.com/2010/9/4/how-to-make-a-robot--lesson-3-making-sense-of-actuators

[M0BSW]

 I think your Decade box is excellent, and has inspired me to make my own, yours look very professional, and I'll bet your really proud of your work, you should be,

[IanJ]

For the less ambitious, you can easily knock up an R box with a bunch of thumbwheel switches with the R's wired on the backs of the switches. 
With BCD thumbwheel switches, you can also do a cheap capacitance box

Good job Kiriakos-GR, very good job!..........Love it.

Per Mike, here's mine (cheap & cheerful category). Range= 0.1 ohm to 99.9999999M ohms

Ian.

[Amarbir[Lynx-India]]

I will add and another three high quality pictures  ,  as proof that I had corrected my minor mistake about the 0.10mOhm ..    


.

Sir ,
     Apologies if i missed it in some discussion .Are there any schematics of this .I could not understand what " DC power " is doing in a decade box .

[ChrisGreece52]

This is the last page of the primary presentation.   


I will be happy to answer any questions .

Just a beautiful build.
Good Job

[curiouscane]

Hello Kiriakos-GR,

Firstly your project is beautifully designed. My hearty wishes for that. Can i check with you if we can use this Decade Resistance Box for Calibration of Insulation Testers ? Whats your suggestion ?
Thanks
Cane

[Noize]

Quote from: curiouscane on Today at 05:06:32 AM

Hello Kiriakos-GR,

Firstly your project is beautifully designed. My hearty wishes for that. Can i check with you if we can use this Decade Resistance Box for Calibration of Insulation Testers ? Whats your suggestion ?
Thanks
Cane

He was banned from this forum years ago.

[casinada]

I think he has his own forum now

[curiouscane]

Is it ? Sorry Iam a newbie. Can you share the link to his new forum ? 

[timofonic]

Decade boxes are test instruments which use a series of resistors, capacitors, or inductors to simulate very specific electrical values. They can be quickly and easily substituted into a circuit and replace any standard value component. Their ability to be configured to nearly any resistance, capacitance, or inductance makes decade boxes a convenient way to find the optimum value for circuit operation. Highly useful for laboratory, education, or design work; decade boxes are also ideal for verifying the accuracy of test equipment prior to use as well as troubleshooting in the field or on the factory floor.

I came late to the party.

I would like to build one . 7 segment display? Or showing numbers instead using lots of knobs?

I think he has his own forum now

[kjn4685]

Very good job.