HP Forums

Full Version: Can anyone identify these keys?
You're currently viewing a stripped down version of our content. View the full version with proper formatting.

Hello All,

Can anyone here identify these keys?

Thank you everyone...

Hi Bruce, looks like an early attempt at a 28C/ 18C. Early prototype perhaps? Cheers, Keith

I would guess 18C early prototype, as it has an "=".

A few more pieces of the puzzle, I guess:

c, d, e.

Heh, did you see the HP28S I built for Keith from a set of clear parts just like those? I built myself one first. It came out quite nice. Then I built one for Keith. It came out PERFECT! (Learned a couple details building the first one...)

Here's a couple shots of mine (maybe Keith will post his for us?)

Your guesses sound like a possibility.

Any clue what 'ENDE' or 'SAL' mean?

ENDE look German to me!

Bruce - yes mine is perfect! One of my favorites in my collection. Here it is: Clear-28S

Also: Clear-28S-2

And: Clear-28S-3

Cheers, Keith

Edited: 17 Oct 2011, 3:39 p.m.

"ende" = end entry ?

"sal" = sale ?

Could be intended for use as (part of) a cash register?

ENDE is indeed german, and SAL might be Saldo. So, it's an interesting mix of languages.