Differences
This shows you the differences between two versions of the page.
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11e [2016/02/09 17:09] clodoveu |
11e [2024/03/21 15:30] (current) clodoveu |
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| * [[etc|Back to Offline Hours]] | * [[etc|Back to Offline Hours]] | ||
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| + | * [[calc|Back to Mechanical Calculators]] | ||
| I purchased this machine in October 2015 at an online auction site. It's my first electric calculator. | I purchased this machine in October 2015 at an online auction site. It's my first electric calculator. | ||
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| I received the machine in working condition, but rubber feet and the roller at the rear were gone, and the electrical wiring needed to be revised. Of course, a full cleaning and lubrication were especially needed. Some functions were not working, such as the clearing of the counter, and some were hampered, possibly due to old lubrication. The belt that connects the motor to the mechanism has been replaced by a leather strip, the kind used in pedal-driven sewing machines. The loop is closed using a piece of string! | I received the machine in working condition, but rubber feet and the roller at the rear were gone, and the electrical wiring needed to be revised. Of course, a full cleaning and lubrication were especially needed. Some functions were not working, such as the clearing of the counter, and some were hampered, possibly due to old lubrication. The belt that connects the motor to the mechanism has been replaced by a leather strip, the kind used in pedal-driven sewing machines. The loop is closed using a piece of string! | ||
| - | I'll attempt disassembling, cleaning, lubricating and fully revising the electrical system in my next vacations. | + | In January 2017 I started working on the mechanical parts. I made it another belt, first trimming down an automotive one, but it turned out the sewing machine option was much better -- now closed with a wire clip. A bakelite switch, used to reverse the direction of the motor, was broken, and I fixed it with a thin metal strip, superglue and tweezers. All wiring was coming apart, so I replaced everything I could, and in the process replaced the cord connector. |
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| + | However, in the first few tests, one of the coils of the motor burned out. Oh well, insulatin must be bad all around, I guess. Now is time to find someone to rewind the coils in hopes the motor will work again. Next chapter coming up. | ||
| **c1953 Brunsviga 11e s/n 286336 ** | **c1953 Brunsviga 11e s/n 286336 ** | ||
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| **More about this machine** | **More about this machine** | ||
| - | [[http://public.beuth-hochschule.de/hamann/brunsviga/brunsviga-11e/index.html | Operation]] | + | [[http://public.bht-berlin.de/hamann/brunsviga/brunsviga-11e/index.html | Operation]] |
| - | [[http://public.beuth-hochschule.de/hamann/brunsviga/brunsviga-11e/indexi.html | Inside views]] | + | [[http://public.bht-berlin.de/hamann/brunsviga/brunsviga-11e/indexi.html | Inside views]] |
| [[https://www.youtube.com/watch?v=A6jFj8l1dZs | A video of the 11e in action]] | [[https://www.youtube.com/watch?v=A6jFj8l1dZs | A video of the 11e in action]] | ||
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| + | [[https://www.youtube.com/watch?v=u0BN-6vKnsw | A video with the main functions]] | ||
| [[http://www.johnwolff.id.au/calculators/Brunsviga/Brunsviga.htm | John Wolfe's Brunsviga page]] | [[http://www.johnwolff.id.au/calculators/Brunsviga/Brunsviga.htm | John Wolfe's Brunsviga page]] | ||
