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2015's calculator anniversary - the SR-52
02-01-2016, 11:07 PM (This post was last modified: 02-01-2016 11:42 PM by jebem.)
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jebem Offline
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RE: 2015's calculator anniversary - the SR-52
Card Reader motor / gearbox / roller wheel.

The roller wheel rubber was dry and falling apart (not gummy as we see on HP card readers).

Before removing the rubber from the wheel/shaft combo, I took some readings.
Here is the motor schematic drawing. Dimensions in mm.
Not really sure about the correct outer diameter of the rubber wheel, as it was deformed.


[Image: Texas_SR52_CR_Motor.jpg]
Jose Mesquita
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RE: 2015's calculator anniversary - the SR-52 - jebem - 02-01-2016 11:07 PM



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