Adhesive/tabbed overlays - C47 & WP43 (DM42), WP3xS, DB48X, newRPL variants!

[spiff72]

(08-10-2023 11:23 AM)mfleming Wrote:  

(08-10-2023 05:41 AM)spiff72 Wrote:  The calculator photo in the link above represents the tabbed overlay kit. I installed that one because I am frequently switching between firmware on my DM42.

With multiple ongoing possibilities for alternative DM42 personalities, tabbed overlays (or easily removed substitute) seems preferable for now. I'm a bit confused by calculator genealogy; is the WP43 a port of the WP34S to the DM42 platform? If so, there are cheap nib HP30B calcs available on the US eBay site, single and in lots of 200 and 1000.

I agree - the tabbed ones are handy (provided they fit your calculator - which isn't a guarantee due to slot height variability). I haven't applied an adhesive one to my DM42 since the early days of receiving it (when testing overlay fits). I have several that I rotate in periodically (C47, DB48X, and WP43).

The WP43 was also the starting point of the C47 (which I think was called C43 originally). It is a forked version of WP43 with some slight (and not so slight differences). The big ones are a single shift key, and no changes to the key labels. The WP43 moved the operator keys (+ - x /) to the left side, too. There are some other differences too - where the C47 includes a few toggles in menus for features that the WP43 doesn't have - namely the e.RPN option (which I like - the no DUP when pressing enter option).