To clean - or not to clean ... ?

[aurelio]

Hi Thomas and congrat for you "new" calculator!!
I'm actually agree with Ignazio but I don't understand why you need to disassemble the unit to clean it, is it so deeply dirty?
is it possible to share with us at least a pic ?
About the silvery color missing on the frame, as Ignazio said, there are different opinions.
Personally I think that to restore is quite easy only with the third series, after removing all the original silver from the bar.
Even if you have to retouch a small dot on the previous models, it is more difficult, cause the colour, usually, you do it with a chrome marker pen, never matches perfectly the original one and sometimes the remedy could be worst than the desease....
For this reason I'm agree with the people that remove completely the "survived" silver, in those cases, leaving the frame completely black....



Cheers,
Aurelio