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HP 41C DOES NOT BEEP
08-30-2014, 06:29 PM (This post was last modified: 08-30-2014 06:48 PM by Mark Hardman.)
Post: #10
RE: HP 41C DOES NOT BEEP
(08-30-2014 04:13 PM)Geoff Quickfall Wrote:  Okay, according to a guru, there were no halfnut 41Cs.

The "soldered half board" you mentioned is the CX ROM/RAM of the HP-41CX Halfnut version. The HP-41CV Halfnut version has no daughter-board.

From "Halfnut - An Internally Improved HP-41C,CV,CX" by Richard Nelson and Jeremy Smith (CHHU V2N4):

"There Are Three Halfnuts: The Halfnut models that are being shipped to dealers - as of early September [1985] in the US - are HP-41CV's and HP-41CX's. There is an HP-41C Halfnut, but this model won't be used except for service of returned HP-41C's. HP-41C Halfnuts will be used only after existing supplies of repair parts are consumed."

For my part, I've been looking for a Halfnut HP-41C since 1985 and have never seen one. Aurelio, this is really a rare and valuable find. I could just about eat my face from jealousy.

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Messages In This Thread
HP 41C DOES NOT BEEP - aurelio - 08-26-2014, 02:55 PM
RE: HP 41C DOES NOT BEEP - Jim Horn - 08-26-2014, 09:30 PM
RE: HP 41C DOES NOT BEEP - aurelio - 08-27-2014, 06:42 AM
RE: HP 41C DOES NOT BEEP - Les Bell - 08-27-2014, 03:52 AM
RE: HP 41C DOES NOT BEEP - aurelio - 08-27-2014, 06:53 AM
RE: HP 41C DOES NOT BEEP - aurelio - 08-30-2014, 03:25 PM
RE: HP 41C DOES NOT BEEP - Geoff Quickfall - 08-30-2014, 04:13 PM
RE: HP 41C DOES NOT BEEP - Mark Hardman - 08-30-2014, 04:46 PM
RE: HP 41C DOES NOT BEEP - aurelio - 08-30-2014, 05:31 PM
RE: HP 41C DOES NOT BEEP - jebem - 08-30-2014, 06:44 PM
RE: HP 41C DOES NOT BEEP - aurelio - 08-30-2014, 07:00 PM
RE: HP 41C DOES NOT BEEP - Mark Hardman - 08-30-2014 06:29 PM
RE: HP 41C DOES NOT BEEP - aurelio - 08-30-2014, 07:33 PM
RE: HP 41C DOES NOT BEEP - Mark Hardman - 08-30-2014, 07:41 PM
RE: HP 41C DOES NOT BEEP - aurelio - 08-30-2014, 07:56 PM
RE: HP 41C DOES NOT BEEP - Geoff Quickfall - 08-30-2014, 07:02 PM
RE: HP 41C DOES NOT BEEP - aurelio - 08-30-2014, 08:13 PM
RE: HP 41C DOES NOT BEEP - Geoff Quickfall - 08-30-2014, 08:25 PM
RE: HP 41C DOES NOT BEEP - aurelio - 08-30-2014, 08:54 PM
RE: HP 41C DOES NOT BEEP - Geoff Quickfall - 08-30-2014, 09:27 PM
RE: HP 41C DOES NOT BEEP - aurelio - 08-30-2014, 09:56 PM



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