Semi-blanknut 41CX



#5

I recently came across a rather strange HP beastie. It is an HP41CX blanknut, but the upper rows of keycaps have the shot molded legends. These keycaps on a standard blanknut do not have shot molded legends.

The keyboard background is a standard blanknut unlabeled black. The front label is gold and just says "Hewlett Packard" without any "41CX".

This unit came with an HP-IL interface to a custom data acquisition box.


#6

Sounds like a special made for a company.

Can you post photos?

Thanks.

#7

I once saw a 41 that was purported to be a blanknut. However, under close inspection, it looked like the key legends had been buffed off.

The blank keyboard background had the tabs (that fit in slots) that you see on a normal blank overlay.

So, it looked like someone just faked a blanknut. Pulled the old legend off and applied a blank template (forgot to remove the tabs and buffed off the key legends.

Is there any way to tell a blanknut other than the blank background and missing labels on the keys?


#8

This one is definitely the real thing. Proper blanknut background and the front label is correct for a blanknut. No signs of buffing, etc. Also it came from a very reliable source (a university junk pile... for free). I won't have any way to do digital photos for a while.

I suspect that it was either a custom-custom ordered unit or HP accidentally picked up a normal keyboard and applied the blanknut labels to it when sombody ordered Option 001.

I have a couple of HP25C units that had similar manufacturing errors. One has a 25C front label without the "Continuous Memory" script on the keyboard. Another has the "Continuous Memory" script but a normal HP25 front label. Both came from sources (and at prices) that had no motive to mess with faking.


Possibly Related Threads...
Thread Author Replies Views Last Post
  The answer to the second semi-mathematical puzzle Mike Reed 3 470 02-18-2013, 02:40 AM
Last Post: Derek Walker (UK)
  OT: a semi mathmatical puzzle 4 u Mike Reed 6 709 02-05-2013, 07:50 PM
Last Post: Mike Reed
  Blanknut differences Casey Drew 1 274 06-28-2010, 06:03 PM
Last Post: Raymond Del Tondo
  Blanknut display problem David Ramsey 7 673 09-01-2008, 10:18 PM
Last Post: David Ramsey
  Small cover over toggle keys 41 blanknut Diehl-Peshkur 5 593 03-16-2008, 04:04 PM
Last Post: 3E0_RTN
  5% Rebate for a 41C Blanknut :-) Jean-Michel 10 889 12-31-2007, 11:24 PM
Last Post: Les Bell
  For all of HPs (semi)-recent misgivings... ECL 1 293 06-06-2007, 12:17 AM
Last Post: allen
  41cx blanknut Darren Tschida 2 340 09-09-2004, 04:20 AM
Last Post: Ronald
  Blanknut Darren Tschida 3 420 09-02-2004, 05:25 PM
Last Post: Frank Boehm
  Value of a HP-41C Option 001, Blanknut Ronald 2 319 06-20-2004, 03:11 PM
Last Post: Ronald

Forum Jump: