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Old 29th October 2012, 07:34 AM   #31
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Are both of those photos the led connected reverse?
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Old 29th October 2012, 07:51 AM   #32
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That's my understanding. The left pic is the LED alone, the right pic zoomed into the reverse knee of the LED zener and regular zener.
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Old 29th October 2012, 08:56 AM   #33
AndrewT is offline AndrewT  Scotland
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post30:

are the voltage scales swapped between the two plots?
One goes -ve to +ve left to right
the other +ve to -ve left to right?
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Old 29th October 2012, 03:39 PM   #34
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No, same scales. The zoomed portion is the knee on the right hand side, current going up from zero.
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