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04-21-2014


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Pictures Model Aka Version Intro date End date Type Last update Progr RAM ROM Nb functions Alpha Nb keys Display type Display Graph XY Ext Print Sav Clock             Microprocessor                                     Functions                         Size Weight Batteries Ext power Power Twin Made in Link(s)                                                 Remarks                                                



   Rockwell

Pictures Model Aka Version Intro date End date Type Last update Progr RAM ROM Nb functions Alpha Nb keys Display type Display Graph XY Ext Print Sav Clock             Microprocessor                                     Functions                         Size Weight Batteries Ext power Power Twin Made in Link(s)                                                 Remarks                                                
201  1973>=19734 funct2010_02_17N1 5+2memN20VFD8. + 2ledNNNNN % RM CM160x85x45 4xAAY  Mexico  
202SLIDE RULE 197x Scient2008_05_06N1 21+6memN20VFD8.NNNNN <-> +/- lnx logx Sqrt e^x 10^x x^y sin cos tan Pi 1/x asin acos atan DR X<>M X<-M X->M M+X^2 M+ M-160x85x45 4xAA6VDC130mA Mexico  
203METRIC CONVERTER 197x 4 funct+metric conv2009_03_20N1 Metric convN20VFD8+2LEDsNNNNN Metric conv160x85x45 4xAA6VDC Same functions than Sears 801.58840Mexico  
204 FINANCIERFINANCIER <=1974>=19744 funct+finance2007_12_08N1 10+10finN20VFD8+2LEDsNNNNNRockwell A4061PAfinancial160x85x45208gr4xAA6VDC     
10R  <=1974>=19754 funct2008_05_06N0 4N16LED8.NNNNNRockwell A5000PA 140x76x22116gr1x9V9VDC  Mexico  
20RMemory 20R <=1974>=19754 funct2010_02_10N1 5+2memN20LED8 1/2NNNNNRockwell A5300PA% MR M155x76x23134gr1x9V7V5DC - 9VDC   Mexico  
30RSLIDE RULE MEMORY <=1974>=19754 funct2008_05_06N1 10+5memN24LED8 1/2NNNNNRockwell A4612PA 2xTI SN75492A (display drivers)X<>Y % Sqrt 1/X X^2 +/- X<>M MR M- M+155x76x23134gr1x9V9VDC  Great Britain, Mexico Uses a charger called 01R which was sold apart.
51RCONVERTER <=1974>=19744 funct + Metric converter2008_05_06N1 Metric convN20VFD8NNNNNRockwell A4004PCMetric conv157x84x28270gr with batt4xAA sealed6VDC     
61RADVANCED SLIDE RULE <=1974>=1974Scient2010_02_17N1 21+6memN20VFD8NNNNNRockwell A4002<-> +/- lnx logx Sqrt e^x 10^x x^y sin cos tan Pi 1/x asin acos atan DR X<>M X<-M X->M M+X^2 M+ M-156x84x24278gr with batt4xAA sealed6VDC  Mexico  
80R  <=1974>=1974 2008_05_06N   N   NNNNN           
12R  <=1975>=19754 funct2008_05_06N0 5N LED NNNNN Sqrt140x76x22 1x9V      
14RDAutomatic Percent <=1975>=19754 funct2008_05_06N0 5N18VFD8+1LEDNNNNNRockwell A5901OA or A5911CA%155x76x25150gr4xAA6VDC     
18RMEMORY <=1975>=19764 funct2010_02_10N1 5+2memN20LED8.NNNNNRockwell B5000CB or B5000CC% STO RCL155x76x22130gr1x9V9VDC  Great Britain Same model as the 8R model but with 1 memory.
Comes in 2 slightly different cases.
21RMEMORY <=1975>=19754 funct2008_05_06N1 5+6memN20LED8 1/2NNNNNRockwell A5300PD% MR M/ Mx M- M+ MC155x76x22 ?140gr1x9V9VDC     
the 24K24K <=1975>=19764 funct2008_05_06N1 8+4memN25VFD8 1/2NNNNNRockwell A5901CA<-> Sqrt % +/- MC MR M- M+142x70x12140gr with batt3xbig1V5cell sealed4V5DC     
24RD  <=1975>=19754 funct2005_12_21N1 8+4memN24VFD8.+2LEDsNNNNNRockwell A5901CASqrt +/- % MR MC M+ M-155x75x23156gr4xAA6VDC     
31R 1<=1975>=19754 funct2008_05_06N1 10+5memN24LED8 1/2NNNNNRockwell A5502PX<>Y % Sqrt 1/X X^2 +/- X<>M MR M- M+155x76x23176gr with batt1x9V9VDC     
31RSLIDE RULE MEMORY2<=1975>=19754 funct2008_05_06N1 10+5memN24LED8 1/2NNNNNRockwell A5502PBX<>Y % Sqrt 1/X X^2 +/- X<>M MR M- M+155x76x23132gr1x9V9VDC     
63RSCIENTIFIC SLIDE RULE <=1975>=1976Scient2008_05_06N1 26+8memN25VFD8 1/2 + 2 1/2NNNNNRockwell A4802CBEE +/- [( )] <-> Pi 1/x e^x 10^x Y^x LN LOG Sqrt sin asin cos acos tan atan R->D D->R X! STO MC RCL X<->M Mx M/ M+ M-160x85x24246gr with batt3xAA sealedY Radio Shack EC-490Mexico Mainly differs from the version II in the keys colors.
63R IISCIENTIFIC SLIDE RULE <=1975>=1976Scient2008_05_06N1 26+8memN25VFD8 1/2 + 2 1/2NNNNNRockwell A4802CAEE +/- [( )] <-> Pi 1/x e^x 10^x Y^x LN LOG Sqrt sin asin cos acos tan atan R->D D->R X! STO MC RCL X<->M Mx M/ M+ M-160x85x24248gr with batt3xAA sealedY Radio Shack EC-490Mexico Mainly differs from the 1st version in the keys colors.
galerie/Rockwell/rockwell_8R8RAUTOMATIC PERCENT <=1975>=19764 funct2010_06_29N0 5N18LED8.NNNNNRockwell B5000CB%155x76x23120gr1x9V9VDC Rockwell 9TRHong Kong, Mexico Same model as the 18R model but without memory.
9TR  <=1975>=19764 funct2008_05_06N0 5N18LED8.NNNNNRockwell B5000CB%155x76x23122gr1x9V9VDC Rockwell 8RMexico  
'76  1975-76 4 funct2008_05_06N1 5+2memN20LED NNNNN % STO RCL155x76x23 1x9VY    To commemorate USA bicentennial.
galerie/Rockwell/rockwell_14RD-II14RD-IIAutomatic Percent <=1976>=19774 funct2010_02_10N0 5N18VFD8 1/2NNNNNRockwell A5901CA or A5901CB%155x76x25134gr3xAA4V5DC  Japan There are 4 places for batteries, but the fourth position cannot be filled.
21KII  1976>=19764 funct2010_02_10N   N   NNNNN           
galerie/Rockwell/Rockwell.the_22Kthe 22K22K <=1976>=19784 funct2008_05_06N1 7+4memN24VFD8 1/2NNNNN +/- Sqrt % MC MR M- M+137x74x1494gr3xAAAY  Japan  
The 22MS22MS 197x 4 funct2008_05_06N1 7+4memN24VFD8NNNNN +/- Sqrt % MC MR M- M+137x74x14 3xAAAY     
galerie/Rockwell/rockewell_the_24K_IIthe 24K II24K II <=1976>=19764 funct2009_06_11N1 8+4memN25VFD8 1/2NNNNNRockwell A5901CA<-> Sqrt % +/- MC MR M- M+137x74x1492gr3xAAA sealed4V5DC  Japan  
The 24MS24MS <=1976>=19764 funct2008_05_06N1 8+4memN25VFD8 1/2NNNNNRockwell A5901CA<-> Sqrt % +/- MC MR M- M+142x70x12144gr with batt3xbig1V5cell sealedY     
24MS II  >=1976>=19764 funct2008_05_06N1  N VFD NNNNN Sqrt +/- %142x70x12 sealedY     
24RD-II24RD II <=1976>=19764 funct2010_02_10N1 7+4memN24VFD8 1/2NNNNNRockwell A5901CA or A5901CBSqrt +/- % MR MC M+ M-155x76x23156gr3xAA4V5DC  Japan There are 4 places for batteries, but the fourth position cannot be filled.
galerie/Rockwell/Rockwell.44RD44RD  <=1976>=1976Scient2013_04_17N1 23+2memN36VFD8 1/2NNNNNRockwell A6500CAsin asin cos acos tan atan Pi Ln e^x Log 10^x Sqrt EE 1/X X^2 (( )) +/- Y^x STO RCL155x75x23134gr3xAA4V5DC  Japan  
64RD  <=1976>=1976Scient2010_02_10N1 25+3memN37VFD8 1/2 +2 1/2NNNNNRockwell A4806CB (7615)x<>y (Sin Cos Tan ln log P>R Deg Sqrt)+INV Pi EE 1/x ( ) +/- y^x Sto M+ RCL155x87x25152gr4xAA6VDC  Japan Same functions and ÁProcessor than Rockwell Royal 12HTA.
the 74K74K <=1976>=1976Scient2008_05_06N1 26+8memN25VFD8NNNNN EE +/- Pi [( )] <-> e^x 10^x Y^x 1/x x! LN LOG Sqrt sin cos tan asin acos atan R->D D->R STO MC X<>M M/ M- M* M+ RCL137x74x14 sealedY     
the 18T18T 1976-77 4 funct2010_10_31N1 5+2memN20VFD8. +1NNNNNCF589% STO RCL138x75x1690gr3xAAA4V5DC  Hong Kong Has a 9 positions display but display only 7 digits on negativ numbers.
the 20T20T <=1977>=19774 funct2008_05_06N1 6+4memN23VFD8 1/2NNNNNCF589% +/- MR MC M+ M-138x75x1692gr3xAAA4V5DC    Has a 9 positions display but display only 7 digits on negativ numbers.



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