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19-Aug-15 1 Based on a 12V 100mm computer fan and a variable speed controller Original Design Idea from Magnetic Stirrer

Published byMyrtle Stone Modified over 8 years ago

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Presentation on theme: "19-Aug-15 1 Based on a 12V 100mm computer fan and a variable speed controller Original Design Idea from Magnetic Stirrer"— Presentation transcript:

1 19-Aug-15 1 Based on a 12V 100mm computer fan and a variable speed controller Original Design Idea from Magnetic Stirrer http://www.experimenten.nl/magneetroerder.html

2 19-Aug-15 2 Controller Parts 12V Fan 0.2A 100mm dia. Skill Drill 7.6V powerpack no load ~ 9V Heat sink - overkill salvaged from old computer Variable speed controller derived from web site http://www.cpemma.co.uk/reg.html See next pages

3 19-Aug-15 3 Variable Speed Controller 1

4 19-Aug-15 4 Variable Speed Controller 2

5 19-Aug-15 5 Variable Speed Controller 3

6 19-Aug-15 6 Variable Speed Controller 3

7 19-Aug-15 7 Flea or Stir Bar Flea (Stir bar)

8 19-Aug-15 8 Construction Heat belt to keep yeast warmish ~ 23 o C Blutak to hold magnet Scrap perspex

9 19-Aug-15 9 In Operation Click on image to run video

10 19-Aug-15 10 Result – Happy Yeast ready to pitch Click on image to run video

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