Kiriakos DIY 50 Turn Current Coil 1A=50A current clamp calibration 5500A/COIL

[Kiriakos GR]

I have receive today an email (question) from a reader.
What is exact brand and model of plastic thermos flask which I did use as a tube?

Answer:
ROTPUNKT  No 40 ca. 1/1Ltr
Type: 45+500 1/L - Dr. Zimmermann
Plastic Polypropylene
Made in West Germany

[Andrew-88]

This is not a Coil, its a WEAPON     

After finishing of my coil basic assembly, I could not wait any longer, I wanted to test it and discover the truth.
Did I do mistakes-less  work?

It is spot on as calibration accessory!!

It might not be a weapon  but its 100% prototype and a very well made DIY Fluke 5500A / COIL brother !!

[overvolt]

It might not be a weapon  but its 100% prototype and a very well made DIY Fluke 5500A / COIL brother !!

I will agree on that too 

Excellent work, this made with reuse of a wooden box, reuse of coil wire, two banana plugs, and spay paint.
One completed project at the cost of 5~10 Euro, only magicians can do that. 
 

[Kiriakos GR]

One completed project at the cost of 5~10 Euro, only magicians can do that. 

ITTSB Forum this is full of examples of how some one he can become a magician. 
But the bored ones to search and read, they will never find out this content.

[Kiriakos GR]

This period of time May 2025, I did have a look at the Modernized FLUKE 55XXA/COIL 50

Back at 2022 when I started my DIY project, I was unaware of 55XXA/COIL 50 (Year 2021 design).
I did checked both datasheets, and there is not any electrical specifications difference.

At the Modernized 55XXA/COIL 50, FLUKE did a redesign of aesthetics mostly.
Visual changes:
a) There is a permanent cover over the Coil = a mechanical shield against accidental impact with foreign objects.
b) Banana sockets (inputs) these are now at the back = a cleaner look / better wires management.
c) This product now includes a hole this shaped as a handle = easy transportation.
d) This product it can be stored even at a vertical position safely, and this is a benefit for a CAL lab bench, as it helps at freeing up workbench space .


In conclusion, this new redesign includes a pack of thoughts at a positive direction.
New CAL lab owners, they might benefit from it allot.

But I am unaware if those having the older 5500A/COIL, they can justify the cost of replacing it, especially when this is still undamaged and functional. 

My thoughts, the adaptation of the newer design, this is going to be a long - long - long  process.
(August 1995) 5500A/COIL design, this will be among us for several decades.