HP39G+ RPN wannabe


Hello Fellow RPNers,

Just picked up a brand new sealed HP39G+ for a song. I have a question, does anyone know how to turn this into a RPN calculator? Does ayone know of a SECRET keystroke sequence or perhaps shorting of a pin or something?

Thanking anyone in advance for any info,

Warmest regards,

(Babyboomer RPN power user)


Not going to happen. Sorry.


If we told you the secret keystroke sequency, it wouldn't be secret any more. And we'd lose our membership in the cabal. Sorry.

If you can't find the secret keystroke sequence, the other way to turn it into an RPN calculator is to sell it and buy a 48GII or 49G+.


By the way, the secret RPN cabal is having its membership drive now, but I'm not allowed to tell you how to join.


It that's! Back give membership-card your, Smith Eric!

Nikto Barada Klaatu, etc

Cabalist, The


Thats why you got it for a song It's non RPN


Thanks guys,

Here i go, singing, dancing, warming up soldering Iron and sharpening my Stilleto switchblade. First open up my HP48gll, then copy RPN circuitry to HP 39g+, then .............#$%^& F-TOOOOM!!!


It will work as an RPN calculator if you hold it upside down and operate it!





LOL, Hey, it does work up sidedown :)


Hi, Andy;

I have two HP39G+ and, although about 90% of my HP's are RPN and I like it more than the algebraic notation, I use the HP39G+ without problems. In fact, I am reading about how to develop applets so my daughter may also use it for studying. The main reason I bought it, though...


Luiz (Brazil)

Edited: 19 Mar 2006, 10:42 p.m.


Hi Luis,

I have several HP 11Cs, 15Cs, HP48GII and now a new HP39G+. I am beginning to really enjoy it now. Not bad for an Algebraic Calc. There a lots of them (new) on e-bay, etc at ultra low prices (under $30.00).


So. Calif Aerospace engineer


See....it doesn't have to be RPN to enjoy it now does it Andy :)



Not at all Paul. Liking this lil gal with the long ALG blue dress more and more. Can always go back to the short skirted RPN 11C, 15C and the HP48GII big mama anytime...... :)

Possibly Related Threads…
Thread Author Replies Views Last Post
  [PRIME] RPN: another attempt at returning more than one value to the RPN stack Marcus von Cube, Germany 5 2,466 11-05-2013, 02:44 AM
Last Post: Marcus von Cube, Germany
  New Iphone & Itouch calculator - Access RPN and Active RPN Nigel Bamber 1 1,155 06-10-2009, 04:13 PM
Last Post: Jean-Michel
  Another calculator with RPN (Corvus 500 RPN) Saile (Brazil) 7 2,206 03-31-2009, 12:14 AM
Last Post: Michael de Estrada
  hp39gs vs hp39g+ Mike (Stgt) 4 1,435 09-06-2006, 07:46 AM
Last Post: Gene Wright
  HP39G+ Bug - CN408905807 Eddie Shore 1 881 10-24-2005, 04:38 AM
Last Post: GE
  Opinion about HP39G+ Namir 16 3,923 06-10-2005, 03:45 AM
Last Post: Mike (Stgt)
  sequence on HP39G katana 2 1,040 10-07-2004, 12:32 PM
Last Post: Mike (Stgt)
  hp39g infrared transfer with computer g 4 1,212 07-16-2004, 08:32 AM
Last Post: g
  Faulty shift & alpha keys on hp39g Mike 5 1,598 11-07-2002, 11:27 PM
Last Post: Mike
  Re: CAS-Enabling Aplet for the HP39G mapet 0 625 10-22-2002, 04:24 AM
Last Post: mapet

Forum Jump: