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HP21 - What's the best way to clean it?
03-19-2018, 10:08 PM
Post: #1
HP21 - What's the best way to clean it?
Hello all,
Hooray - I've managed to buy a functioning HP21 which looks a little grubby.
Can I use alcohol to clean it ( I really don't want to damage it any further)?

Also, what is the best way to replace those 4 (grubby?) pads the calculator rests on?

Any advice greatly appreciated!

Rolf

PS: Once cleaned I will post some pictures
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HP21 - What's the best way to clean it? - rolfmwa - 03-19-2018 10:08 PM



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