Silver border CV - orignal? - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: General Forum (/forum-4.html) +--- Thread: Silver border CV - orignal? (/thread-18706.html) |
Silver border CV - orignal? - TallKey - 08-24-2022 04:05 PM 41CV has a silver keyboard border. It is from 1980. Note the raised profile bevel on the F and the SHIFT keys. Is the silver border keyboard label an early production CV possibility? [attachment=11018] RE: Silver border CV - orignal? - CY-CL - 09-03-2022 06:31 AM The earliest CV know to exist, is actually 2103A10255 (corrected). This unit has the gold keyboard border and is a TallKey version. RE: Silver border CV - orignal? - AndiGer - 09-03-2022 08:12 AM (09-03-2022 06:31 AM)CY-CL Wrote: The earliest CV know to exist, is actually 2103A010255. This unit has the gold keyboard border and is a TallKey version. Typo? 2103A010255 - 6 digits running no.? RE: Silver border CV - orignal? - J-F Garnier - 09-03-2022 08:20 AM (09-03-2022 06:31 AM)CY-CL Wrote: The earliest CV know to exist, is actually 2103A010255. This unit has the gold keyboard border and is a TallKey version. See here my early 41CV :-) This single tall gold key version seems unique. This same machine has a gold keyboard border too and the embossed HP-41 CV logo as visible on my home page. J-F RE: Silver border CV - orignal? - CY-CL - 09-03-2022 08:29 AM All Calculator with A0 in the Serial are HP-41C All Calculator with A1 in the Serial are HP-41CV (Fullnut) RE: Silver border CV - orignal? - CY-CL - 09-03-2022 08:32 AM Yes the SN was a Typo RE: Silver border CV - orignal? - Didier Lachieze - 09-03-2022 09:40 AM (09-03-2022 08:29 AM)CY-CL Wrote: All Calculator with A0 in the Serial are HP-41C I didn’t know that. Where did you get this information from? And for the CX fullnut is it A2? RE: Silver border CV - orignal? - CY-CL - 09-03-2022 10:00 AM Many years of S/N research. :-) HP-41CV 1981 : Starts with a 1, when more than 9999 units where build in one week, they starts with a 5 1982 – 1985 : Starts with a 4 1986 : Starts with a 2 HP-41CX 1983 – 1985 : All CX starts with a 4 RE: Silver border CV - orignal? - Massimo Gnerucci - 09-03-2022 10:40 AM (09-03-2022 10:00 AM)CY-CL Wrote: Many years of S/N research. :-) I own 3 CVs with serial #: 2539S203**, 2541S200*, 2546S206* RE: Silver border CV - orignal? - CY-CL - 09-03-2022 10:48 AM (09-03-2022 10:40 AM)Massimo Gnerucci Wrote:(09-03-2022 10:00 AM)CY-CL Wrote: Many years of S/N research. :-) I talk from Fullnuts only ... In 1985 the change from Full to Halfnuts was during week 22 up to week 26. RE: Silver border CV - orignal? - CY-CL - 09-03-2022 10:52 AM Interesting fact from the 1981 HP-41CV production are: Production runs ins USA (A) from week 3 up to week 13 From week 14 all HP-41CV's where produced in Singapor (S) RE: Silver border CV - orignal? - Massimo Gnerucci - 09-03-2022 11:10 AM (09-03-2022 10:48 AM)CY-CL Wrote:(09-03-2022 10:40 AM)Massimo Gnerucci Wrote: I own 3 CVs with serial #: 2539S203**, 2541S200*, 2546S206* Confirmed, all those 3 are halfnuts. Thanks. RE: Silver border CV - orignal? - rprosperi - 09-03-2022 01:07 PM Thanks for these notes on the 41 serial numbers CY-CL!! Despite the 41 very likely being the most thoroughly documented calculator in history, I still learn lots of new stuff about it here, like these s/n notes. Also I've seen very few of the embossed label units; does anyone know why/when/where this was used for 41 production? I was once told this was a 3rd-party after-market item that was sold, but never confirmed. RE: Silver border CV - orignal? - AndiGer - 09-03-2022 03:44 PM (09-03-2022 10:48 AM)CY-CL Wrote: In 1985 the change from Full to Halfnuts was during week 22 up to week 26.So I wonder the serial 2405S40422 I found and mentioned here of a halfnut I got lately and that was bought new and never serviced (relevant part of (German) communication attached). Weird. BTW: Fully working now. Andi RE: Silver border CV - orignal? - TallKey - 09-03-2022 08:28 PM If SN is *A0* it is a C. If it has a silver border, then it is a C. I recall border and chin logo being gold = CV or CX Recently acquired the 41. Have read enough on this forum to wonder about it being a factory transition model or an HP repair mash-up. So it started life as a C. Thanks all for the above data. Need a spreadsheet to track the variations and have started one but it looks sparse. RE: Silver border CV - orignal? - CY-CL - 09-04-2022 06:03 AM (09-03-2022 03:44 PM)AndiGer Wrote:(09-03-2022 10:48 AM)CY-CL Wrote: In 1985 the change from Full to Halfnuts was during week 22 up to week 26.So I wonder the serial 2405S40422 I found and mentioned here of a halfnut I got lately and that was bought new and never serviced (relevant part of (German) communication attached). Weird. BTW: Fully working now. Thanks Andi This backside is from a Full Nut. Make a little bit research and you will find out wat is wrong on this 41. Good luck. RE: Silver border CV - orignal? - Didier Lachieze - 09-25-2022 08:54 PM (09-03-2022 08:28 PM)TallKey Wrote: If it has a silver border, then it is a C. To confirm that, here is an extract of the HP Press Release for the 7 January 1981 HP-41CV announcement, published in PPC Journal - V8N1p15-16: Quote:The HP-41CV also features special gold trim on the outside to convey the "top-of-the-line" quality. |