HP Forum Archive 05

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Who know's which calculator has the hidden HP Logo in the LED decimal points? Message #1 Posted by Bruce Cohen on 5 Jan 2001, 7:52 p.m. I am suprised I have never seen any mention of this in the museum. One of the LED display calculators has the letters HP on every decimal point. I remember reading this in calculator publication, either "HP Key Notes" or "The PPC Journal". I challenge the readers to try and discover which model has this "subliminal" advertising. As I recall, you will need about 20X magnification to see it clearly. Happy hunting!

Re: Who know's which calculator has the hidden HP Logo in the LED decimal points? Message #2 Posted by mkernal on 16 Jan 2001, 1:12 p.m., in response to message #1 by Bruce Cohen Bruce Cohen wrote (on Jan 5, 2001): "I am suprised I have never seen any mention of this in the museum. One of the LED display calculators has the letters HP on every decimal point. I remember reading this in calculator publication, either "HP Key Notes" or "The PPC Journal". I challenge the readers to try and discover which model has this "subliminal" advertising. As I recall, you will need about 20X magnification to see it clearly. Happy hunting!" So Bruce, how about a hint?? Can you tell us which to which series it belongs. I'm guessing one of the 1968 to 1971 High End Desktop Series, because I suppose they had larger LED displays and were AC powered, where extra (miniscule) current draw wouldn't be an issue (in comparison to one of the battery-powered handhelds). I'll take a shot in the dark.. 9810?? Matt

Re: Who know's which calculator has the hidden HP Logo in the LED decimal points? Message #3 Posted by Bruce Cohen on 17 Jan 2001, 1:33 p.m., in response to message #2 by mkernal Due to the overwhelming response to this challenge, I'll drop a few hints! It has 99 fully merged program steps. It is both AC and battery powered. It has a built-in printer. It has continuous memory. It is hand held. It is black. Good Luck, Bruce

Well that would be yer basic 19C there. Message #4 Posted by mkernal (US) on 17 Jan 2001, 2:58 p.m., in response to message #3 by Bruce Cohen I only asked for "a" hint ;-) I'm going to have to see this one. I'll take a look on mine tonight. Imagine that.. A hardware Easter egg. Thanks, Bruce Matt

Re: Who know's which calculator has the hidden HP Logo in the LED decimal points? Message #5 Posted by Katie on 18 Jan 2001, 12:02 a.m., in response to message #3 by Bruce Cohen And let's not forget the very much less capable but still quite interesting cousin of this one. It too has the magic decimal points!

THAT'S SO COOL!!! Message #6 Posted by Todd Garabedian on 19 Jan 2001, 11:15 p.m., in response to message #5 by Katie OK, I just dug out my XXX and took a look at the decimal points with a 10X jeweler's loupe. I'll be dipped! Sure enough, I could make out "hp" on the decimal points! Todd

Re: Who know's which calculator has the hidden HP Logo in the LED decimal points? Message #7 Posted by Paul Brogger on 18 Jan 2001, 11:39 a.m., in response to message #3 by Bruce Cohen (That would be 98 program steps, then.) And so, the MoHPC should be formally asked to add another close-up or two to its store of images, right?

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