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HP41/71 Membrane overlay comparison
03-21-2015, 09:30 PM
Post: #1
HP41/71 Membrane overlay comparison
Prayer circle, everyone!

I'm going to try an upload a picture. [GASP!!!!!]



[Image: DSC02087.jpg]

2speed HP41CX,int2XMEM+ZEN, HPIL+DEVEL, HPIL+X/IO, I/R, 82143, 82163, 82162 -25,35,45,55,65,67,70,80
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03-21-2015, 09:32 PM (This post was last modified: 03-21-2015 09:33 PM by TASP.)
Post: #2
RE: HP41/71 Membrane overlay comparison
backside:

[Image: DSC02088.jpg]

2speed HP41CX,int2XMEM+ZEN, HPIL+DEVEL, HPIL+X/IO, I/R, 82143, 82163, 82162 -25,35,45,55,65,67,70,80
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03-21-2015, 09:35 PM
Post: #3
RE: HP41/71 Membrane overlay comparison
71 membrane edge, compare to frame on the 41 posted following


[Image: DSC02089.jpg]

2speed HP41CX,int2XMEM+ZEN, HPIL+DEVEL, HPIL+X/IO, I/R, 82143, 82163, 82162 -25,35,45,55,65,67,70,80
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03-21-2015, 09:36 PM
Post: #4
RE: HP41/71 Membrane overlay comparison
Excuse the lint and fuzz, thank you.

[Image: DSC02090.jpg]

2speed HP41CX,int2XMEM+ZEN, HPIL+DEVEL, HPIL+X/IO, I/R, 82143, 82163, 82162 -25,35,45,55,65,67,70,80
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03-21-2015, 11:08 PM
Post: #5
RE: HP41/71 Membrane overlay comparison
Nice pictures ! Thanks.
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03-21-2015, 11:32 PM
Post: #6
RE: HP41/71 Membrane overlay comparison
I was really surprised to find out the 71 membrane was 3rd party made. It is a good example of what could be done back in the day if someone cared to do a nice job at something.

Pictures taken with a Sony HDR UX5 HD camcorder in pic mode. Other than scaling them for 19 inch monitor size, I left them uncropped and unprocessed.

That camcorder is another weird goomer in my personal electronics menagerie.

2speed HP41CX,int2XMEM+ZEN, HPIL+DEVEL, HPIL+X/IO, I/R, 82143, 82163, 82162 -25,35,45,55,65,67,70,80
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