What is this piece belonging to an HP41?

What is this piece belonging to an HP41? - Printable Version

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What is this piece belonging to an HP41? - gfernval - 10-03-2014 06:31 PM

see http://www.ebay.com/itm/Hewlett-Packard-Calculator-HP-41-Miscellaneous-Parts-/151295759893

RE: What is this piece belonging to an HP41? - walter b - 10-03-2014 07:10 PM

Looks like a used strip of Kapton to me (polyimide film). You should be able to get that in better shape for less.

d:-)

RE: What is this piece belonging to an HP41? - Hans Brueggemann - 10-03-2014 07:15 PM

(10-03-2014 06:31 PM)gfernval Wrote: see http://www.ebay.com/itm/Hewlett-Packard-Calculator-HP-41-Miscellaneous-Parts-/151295759893

this is a piece of kapton foil used in the HP-41CX halfnut to isolate the main ROM installation and is called a "rip-off".

hans

RE: What is this piece belonging to an HP41? - aurelio - 10-05-2014 08:29 AM

(10-03-2014 07:15 PM)Hans Brueggemann Wrote:
(10-03-2014 06:31 PM)gfernval Wrote: see http://www.ebay.com/itm/Hewlett-Packard-Calculator-HP-41-Miscellaneous-Parts-/151295759893

this is a piece of kapton foil used in the HP-41CX halfnut to isolate the main ROM installation and is called a "rip-off".

hans

If I'm not wrong below a sample (thanks to Geoff) 2where the fullnut and halfnut boards are compared
Regards

[Image: comparisonfull_halfnutb-1.jpg]