[O.T.] A collector's question



#4

In November I purchased a calculator which had no manufacturer or model number on the front. The label on the back was BASIC SLIDE RULE with a serial number and the statement "Assembled in Mexico of U.S. and Foreign Parts". I could not find a similar calculator in the Ball/Flamm "Collector's Guide to Pocket Calculators".

On return to Florida I found that the calculator was mechanically very similar to my Sears Electronic Slide Rule. The Sears Electronic Slide Rule has more second functions for the keys and uses the right hand switch to select degrees or radians for the trig functions, while the BASIC SLIDE RULE offers fewer second functions and uses the right hand switch to select the display format. The Ball/Flamm book notes that the Sears Electronic Slide Rule was "... probably made by Rockwell, has interesting case and key style, similar case to the [Sears] M8". The Rockwell idea makes sense because both my BASIC SLIDE RULE and my Sears Electronic Slide Rule use a blue fluor display for the numerical value but use a red LED dot in the upper right hand corner of the display to indicate a negative value, and use a red LED dot in the upper left hand corner of the display to indicate overflow. That characteristic appeared in several early Rockwell calculators. I cannot read the label on the Sears Electronic Slide Rule but the Ball/Flamm book states that it was made in Mexico.

Does anyone know what entity marketed the BASIC SLIDE RULE ?


#5

Philippe's
calculator site
says that the BASIC SLIDE RULE was indeed marketed by Sears.


#6

Quote:
Philippe's
calculator site
says that the BASIC SLIDE RULE was indeed marketed by Sears.

I went to that site hoping to find a picture but one wasn't available there. But using your idea I searched "Sears BASIC SLIDE RULE" which lead to http://www.eepcworld.de/Taschenrechner/s/SEARS%20BASIC%20SLIDE%20RULE.jpg which does have a picture which shows no nomenclature on the front. That seems curious since the Sears Electronic Slide Rule and the Sears M8 which use a very similar case have the nomenclature embossed on the front.

Thank you for your help.

Palmer


Possibly Related Threads...
Thread Author Replies Views Last Post
  Inefficient Market Theory for the HP collector Mike Ingle 4 539 06-23-2007, 01:02 PM
Last Post: Seth Morabito
  Auction - Definitely Collector Related Howard Owen 1 347 04-27-2007, 03:17 PM
Last Post: Ron
  This collector needs lots of space Klaus 11 896 08-28-2006, 10:01 AM
Last Post: GE
  Win a Free Ruggedized HP50G data collector Tim Wessman 0 231 08-08-2006, 11:55 AM
Last Post: Tim Wessman
  Collector Responsibility? Russ in Charlotte 5 517 08-09-2005, 10:27 PM
Last Post: Howard Owen
  For the Discriminating Collector Howard Owen 3 413 06-24-2005, 12:27 PM
Last Post: Chan Tran
  What about a collector's meeting Matthias 20 1,661 07-04-2003, 05:07 AM
Last Post: Juergen (CH)
  Re: Collector's Dilemma - Advice Needed frenchem 0 287 12-05-1999, 01:27 AM
Last Post: frenchem
  Collector's Dilemma - Advice Needed Todd Garabedian 5 560 12-01-1999, 04:51 PM
Last Post: Anon
  I am a collector and was wondering...... steve 3 439 10-31-1999, 04:46 PM
Last Post: DaveC

Forum Jump: