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Different speeds for HP-41CX and HP-41CV
12-17-2016, 08:18 PM
Post: #10
RE: Different speeds for HP-41CX and HP-41CV
(12-17-2016 05:58 PM)aurelio Wrote:  
(12-16-2016 08:51 PM)Gene Wrote:  You know you MUST now record it and post an .mp3 or .wmv file of the beep, right ?
It should be interesting collect mp3s from all the 41 owners and determinate up to them the clock of the processors Smile

Actually I met a problem with the clock of one of my 41c, maybe different to the average: it does not allow the usage of certain modules.
I've planned to swap one of the capacitorsas from the service manual, I must find the time.

In the 1980's, I ordered the speed-up kit from EduCalc for my 41cx. It had a tiny switch to switch between normal speed and nearly double, IIRC. Before installing it, I read in its instructions that it should not be used with extended memory, HPIL, or merged modules. Since I had, and regularly used, all of these, I sent the kit back and did not install it.  (Lots of HP-41 links at the bottom of the links page, at )
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RE: Different speeds for HP-41CX and HP-41CV - Garth Wilson - 12-17-2016 08:18 PM

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