I recently purchased a HP-41C Blanknut Option 001. I was wondering if anyone knows why the plastic cover is put over the user and program keys. What was HP's intention?
Is there any way to enter program mode without using the prgm switch? Is the plastic cover removeable?
This particular machine has the following features of a blanknut
1. It is a HP-41CV
2. It has the plastic cover over the program and user switch
3. It does not have a front label (Hewlett Packard ...)
4. It has a serial # on the back
5. It does not have a back label, but has MADE IN SINGAPORE stamped in silver
Blanknut question
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