2017 - ITTSB project: Assembly of a Variac Powerstat 226U

[giavra]

...

Magnificent work Kyriakos very Glad that this unit is made in Greece

[Kiriakos GR]

Gentlemen  with huge pride I am presenting pictures of what a real professional brush this can do regarding scuff marks removal.
This is 120 Grit and I am after classic aluminum surface ( clean - But not polished to mirror finish ).

This is my Before / After test, and the outcome this is amazing.   

I love this old black decker drill, real monster an undying power drill

Every rechargeable power drill this respecting  rpm limits of drill bits, this is a keeper.   

[Kiriakos GR]

This is my feedback four years later, so to confirm that at that project, I did not make the slightest mistake regarding components selection.   
It feels good today, that those 14086 of topic Views up to date, they are a proof of specific content popularity within time.

The only issue worth reporting, this has to do with the longevity in time of recent made HP print ink supplies, the ink over the label start fading after 7~10 months time.
Despite the fact that I do buy genuine HP products (cartridges) and paper, the issue remain.
Does HP sabotage their own products quality?
Does HP using ECO-friendly but low quality chemistry?
Either way my next printer this will not be an HP one. 

This VARIAC device does not have an expiration date. 
   

[Kiriakos GR]

Today I was have a look of my pictures of this project, them stored at my hard drive.
Two questions seems that they were never answered with enough clarity.


1) What is the manufacturing decade of the Powerstat 226U which I received from Italy?
Due a sticker over it body this mentioning patents and dates,  I can safely assume that this is production of 1972 ~ 1980 especially for export to EU.
The knob shape over my Variac, this is extremely unique. 

2) The only consumable of this transformer, this is a single carbon brash.
Part description: Superior Electric RB226   

Superior Electric firm in the USA, this is still alive, and I did spot on eBay an Powerstat 226U, this be production of 2015.


I did some thoughts because of the high cost of my project, if it worth having and a spare carbon brash (Superior Electric RB226)?
My transformer came as new (never used) old stock, and up to date, this was never stressed by my hands.
Therefore it is wise of me, so to avoid this unnecessary expense for now.