The Museum of HP Calculators

HP Forum Archive 21

[ Return to Index | Top of Index ]

WP34S donor case from HP20B?
Message #1 Posted by Andrew Davie on 19 June 2012, 11:33 a.m.

About to embark on a WP34S journey. I want the HP30B keys, as they're cited as being superior. But I like the HP20B colour scheme... must have black! The machines look pretty similar from what I can see of the photos online. I was wondering; would it be possible to simply transplant, taking the HP20B case and inserting the HP30B internals? Obviously the overlay is the same for both; but do the internals match transplant-wise? Thanks A

      
Re: WP34S donor case from HP20B?
Message #2 Posted by Alexander Oestert on 19 June 2012, 12:15 p.m.,
in response to message #1 by Andrew Davie

I have converted 20b's and 30b's to WP-34s and I guess the problem with your task is the fact that the keyboard is heat-staked to the top case and thus not easily transplanted. I contemplated that operation but have finally not tried it myself for this reason.

            
Re: WP34S donor case from HP20B?
Message #3 Posted by Harald on 19 June 2012, 1:47 p.m.,
in response to message #2 by Alexander Oestert

I am not quite sure, but I think the 20b might have fewer heat stakes.

      
Re: WP34S donor case from HP20B?
Message #4 Posted by Tim Wessman on 19 June 2012, 1:51 p.m.,
in response to message #1 by Andrew Davie

No, they are very different internally. The keyboard structure is a different thickness and the heat stakes are in different spots. I don't think anyone has been successful in changing them.

TW

      
Re: WP34S donor case from HP20B?
Message #5 Posted by Marcus von Cube, Germany on 19 June 2012, 3:48 p.m.,
in response to message #1 by Andrew Davie

It might be better to airbrush the 30b case.

            
Re: WP34S donor case from HP20B?
Message #6 Posted by db (martinez, ca.) on 19 June 2012, 7:38 p.m.,
in response to message #5 by Marcus von Cube, Germany

Quote:
It might be better to airbrush the 30b case.

or only use it in the dark.

                  
Re: WP34S donor case from HP20B?
Message #7 Posted by Walter B on 20 June 2012, 1:26 a.m.,
in response to message #6 by db (martinez, ca.)

Sounds like doing it like an eagle - circling and swooping


[ Return to Index | Top of Index ]

Go back to the main exhibit hall