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Old 16th Nov 2018, 10:56 am   #8
squegging
Triode
 
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Join Date: Mar 2011
Location: Bristol, UK.
Posts: 44
Default Re: DC motor speed control

I have just measured 110vdc (slow) to 220vdc (fast) across the brushes, and 17vdc (slow) to 18vdc (fast) across the field.

When the direction switch is operated, the field changes polarity.

So now to start tracing out the circuit.... could be a while. Watch this space!
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