• Re: Logarex 27608
    Publicado el Viernes, 15 de Enero de 2021 a las 14:22 CET por jerry_mccarthy_uk@... (Jerry McCarthy)
    Thank you Gabriel and Peter, I have contacted the contact person on the second listed URL below.I'll see what happens!Regards, Jerry McCarthy, ...

  • Re: Logarex 27608
    Publicado el Jueves, 14 de Enero de 2021 a las 22:21 CET por bobdi50@... (Bob Adams)
    Many thanks Gabriel, I have a 27608 and have been looking for the manual.   Cheers Bob Adams  

  • Re: Logarex 27608
    Publicado el Jueves, 14 de Enero de 2021 a las 18:31 CET por gv33858@... (Gabriel Vanderdonck)
    Hi Jerry,to add to what Peter wrote, you can have a look at http://logaro.cz/premiant-pleskot/Or you can try to contact the guy on this page : https://log.sustr.net/log_navody.phpIt seems he has the manual ...

  • Re: Logarex 27608
    Publicado el Jueves, 14 de Enero de 2021 a las 18:21 CET por PHolland@... (Peter Holland)
    Hello Jerry,Try to ask here:http://logaro.cz/LOGARO.CZ – Logaritmické pravítkoRegards,PeterAm 14.01.2021 17:44 schrieb "Jerry McCarthy via groups.io" <jerry_mccarthy_uk@...>:

  • Logarex 27608
    Publicado el Jueves, 14 de Enero de 2021 a las 17:44 CET por jerry_mccarthy_uk@... (Jerry McCarthy)
    Hi all, I'm wondering if anybody might have a manual for the Logarex 27608 rule? It can be in any language....Thanks for reading,Regards, Jerry McCarthy, U.K.

  • File /Scales/Slide_Rule_Scale_Equations.txt uploaded
    Publicado el Martes, 05 de Enero de 2021 a las 20:06 CET por @...
    The following files have been uploaded to the Files area of the sliderule@groups.io group. /Scales/Slide_Rule_Scale_Equations.txt By: Rick - WA6NDR Description: These equations generate the values shown on many slide rule scales. Understanding them helps ...

  • Re: Graphoplex Electric log log and others: Development of scale arrangement
    Publicado el Miércoles, 09 de Diciembre de 2020 a las 22:34 CET por andreas.poschinger@... (Andreas Poschinger)
    Dear Fabrice and all other friends of Graphoplex,hm. Séjourné inventor of the 640 or not?  I uploadedhttps://groups.io/g/sliderule/files/scaleArrangements/Sejourne.png whichcan be found in articles from Daniel TOUSSAINT in the net. According tothis ...

  • Re: Graphoplex Electric log log and others: Development of scale arrangement
    Publicado el Miércoles, 09 de Diciembre de 2020 a las 20:39 CET por andreas.poschinger@... (Andreas Poschinger)
    Dear Fabrice, in Frensh wikipedia there is (without reference so far I've seen): ...

  • Re: Graphoplex Electric log log and others: Development of scale arrangement
    Publicado el Miércoles, 09 de Diciembre de 2020 a las 18:22 CET por fabrice94@... (Fabrice Bouillerot)
    Hello Andreas,> Le lundi 30 novembre 2020 à 21:36:04 UTC+1, Andreas Poschinger <andreas.poschinger@...> a écrit :>> In your last email:> > "In conclusion, ...

  • Re: Graphoplex 641 / 690: Printed scales?
    Publicado el Miércoles, 09 de Diciembre de 2020 a las 16:05 CET por fabrice94@... (Fabrice Bouillerot)
    Hello Andreas,"Savon de Marseille" is a kind of organic soap. "Slide ruly yours"Fabrice Bouillerot

  • Re: Graphoplex 641 / 690: Printed scales?
    Publicado el Miércoles, 09 de Diciembre de 2020 a las 15:35 CET por gv33858@... (Gabriel Vanderdonck)
    Hello Gonzalo,In this article, one can read : "... these addresses [appearing in the Paris commercial directory] are accompanied by descriptions of activity. In these, slide rules are first mentioned ...

  • Re: Graphoplex 641 / 690: Printed scales?
    Publicado el Miércoles, 09 de Diciembre de 2020 a las 13:06 CET por andreas.poschinger@... (Andreas Poschinger)
    Hi Gonzalo, this remembers me in the "Ludwigseisenbahn", the first railway in ...

  • Re: Graphoplex 641 / 690: Printed scales?
    Publicado el Miércoles, 09 de Diciembre de 2020 a las 12:39 CET por martingonzalo@... (Gonzalo Martin)
    Hello Gabriel   Etienne tell me that this information (“De 1965 à 1972 : 130 rue de Javel") is from this article https://osgalleries.org/journal/pdf_files/11.1/V11.1P23.pdf   Information  from the ‘Paris commercial directory’   May be..  but I dont know any Tavernier-Gravet ...

  • Re: Graphoplex 641 / 690: Printed scales?
    Publicado el Miércoles, 09 de Diciembre de 2020 a las 10:00 CET por martingonzalo@... (Gonzalo Martin)
    Hello Andreas   Also I can understand this date, I will ask Etienne about it.   Best regards   Gonzalo  

  • Re: Graphoplex 641 / 690: Printed scales?
    Publicado el Miércoles, 09 de Diciembre de 2020 a las 07:22 CET por gv33858@... (Gabriel Vanderdonck)
    Hello Gonzalo,There is a page on your site that goes even beyond that. As far as I can see, written by Etienne Pommel in 2005 and 2009, it states following ...

  • Re: Graphoplex 641 / 690: Printed scales?
    Publicado el Martes, 08 de Diciembre de 2020 a las 23:50 CET por martingonzalo@... (Gonzalo Martin)
    Hello Andreas   News about Tavernier -Gravet   The book “La règle à calcul’ de Dudin 1952 issue 2 , has one advertisement for Tavernier Gravet (Darmstad, Elecricien, Commercial) and one other for Graphoplex ...

  • Re: Graphoplex 641 / 690: Printed scales?
    Publicado el Martes, 08 de Diciembre de 2020 a las 11:55 CET por martingonzalo@... (Gonzalo Martin)
    Hello Andreas   The first question is when they changed to PVC and the second question is whether they used different methods on PVC.   Sorry, I cannot answer you.   About Tavernier-Gravet, there’s not ...

  • Re: Faber-Castell Book now available online
    Publicado el Lunes, 07 de Diciembre de 2020 a las 19:47 CET por ewsint@... (ewsint)
    Hi Peter,Long time since we visited. I still have all the slide rules you sold to me in several years past. Q: are you planning to have your new book ...

  • Re: Faber-Castell Book now available online
    Publicado el Lunes, 07 de Diciembre de 2020 a las 19:15 CET por andreas.poschinger@... (Andreas Poschinger)
    Yes, thanks a lot Peter! Having it now as PDF it is much easier to look for ...

  • Re: Faber-Castell Book now available online
    Publicado el Lunes, 07 de Diciembre de 2020 a las 19:10 CET por martingonzalo@... (Gonzalo Martin)
    Thanks Peter!   I will put it in ‘links’ of “photocalcul”   Best regards   Gonzalo Martin