HP Forum Archive 05

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Working HP41C With no PCB Board? Message #1 Posted by Ty Rogers on 23 Mar 2001, 7:32 p.m. I have opened many HP41C/CV/CX's but I have never seen one without the PCB board. I just opened one with the PCB board built into the key/display board. Has anyone ever seen this? If anyone would like to see a picture let me know.

Re: Sure, I've seen them Message #2 Posted by Mike on 23 Mar 2001, 9:54 p.m., in response to message #1 by Ty Rogers It has an IC right where the pcb used to be.

Re: Working HP41C With no PCB Board? Message #3 Posted by Steve (Australia) on 23 Mar 2001, 10:30 p.m., in response to message #1 by Ty Rogers Would that make it a no-nut? Post a picture to the forum!

HP41C "No-nut" Message #4 Posted by Ty Rogers on 23 Mar 2001, 11:23 p.m., in response to message #3 by Steve (Australia) I have posted the pictures http://photos.yahoo.com/bc/ty__77705?d&.flabel=fld1&.src=ph

Re: HP41C "No-nut" Message #5 Posted by Philip Reagan on 24 Mar 2001, 12:25 a.m., in response to message #4 by Ty Rogers That's neat! I haven't heard anything about these. Is it a CX? What is the Serial Number?

Re: HP41C "No-nut" Message #6 Posted by Ty Rogers on 24 Mar 2001, 9:58 a.m., in response to message #5 by Philip Reagan The calculator is a HP41C with a scratched on serial no. 2223S44044. It is lighter than the others also.

Re: HP41C "No-nut" Message #7 Posted by Ion Abraham (New Mexico) on 24 Mar 2001, 11:20 a.m., in response to message #4 by Ty Rogers Dear Ty, That looks really neat! You said this is a C, so is it possible that this unit was originally a Fullnut C that was sent in to HP to be fixed, and they upgraded it to the Halfnut C equivalent? That would make it very rare. Is the screen rounded or squared off at the corners? I mention this because a CX Halfnut that I have looks a lot like your picture, but it has a bigger chip. I would love to see a picture of the front of your C. Where did you find this thing, by the way? Best regards, Ion Abraham Albuquerque, New Mexico

Re: HP41C "No-nut" Message #8 Posted by Ty Rogers on 24 Mar 2001, 4:21 p.m., in response to message #7 by Ion Abraham (New Mexico) Ion, A picture of the front has been posted. As you can see in the picture the display is rounded. I got it on Ebay. I guess it was repaired by the way the serial no. has been scratched in on the back. Who knows.

Re: I've seen these in CV Message #9 Posted by Mike on 24 Mar 2001, 6:10 p.m., in response to message #7 by Ion Abraham (New Mexico) The last one I just had one of these in a CV variety. My guess is that this is simply reduced electronic versions. I don't think they are all that rare.

Damn! More to collect :-) Message #10 Posted by Steve (Australia) on 24 Mar 2001, 7:31 p.m., in response to message #9 by Mike So do we now have the full-nut, half-nut, and the no-nuts? Now I've got more to collect. How about blank-nuts, half-blank-nuts and no-blank-nuts? I'm going nuts just thinking about. "I've got a lovely bunch of coconuts" "There they are all sitting in a row" This is steve's other half. The men in the white coats are coming soon. Don't worry dear.

Re: Damn! More to collect :-) Message #11 Posted by Wlodek Mier-Jedrzejowicz on 4 Apr 2001, 3:59 p.m., in response to message #10 by Steve (Australia) Another late follow-up - I just don't find the time to keep up here :-( Ty's No-Nut is definitely from an HP-41C sent for repair to HP, who replaced the entire calculator with a Halfnut unit and scratched on the serial number of the original HP-41C sent for repair. These _are_ rare - the HP-41C was no longer on sale when the Halfnut version of the HP-41CV and HP-41CX was put on sale. So the only way to get a Halfnut HP-41C is to find one of these replacements. How many people will admit to having one? I was extremely lucky to get one froma fellow collector to whom I am very grateful! Wlodek Mier-Jedrzejowicz

Re: Damn! More to collect :-) Message #12 Posted by David Smith on 5 Apr 2001, 4:44 p.m., in response to message #11 by Wlodek Mier-Jedrzejowicz It sounds like a 41C that I had sent back to HP for repair in the mid 80's. It came back with the brains and memory of a 41CV (and a note not use use memory modules). Case still says 41C and has the original serial number. I wonder what other mutants are out there?

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