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Irregular curve spacing

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Brennwald
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4 years 6 days ago #74 by Brennwald

Irregular curve spacing was created by Brennwald

I don't follow the discussions around here very often, so I don't know if this is a known issue, but...

When I measured some 6H30P triodes a while ago, I observed a strange "jump" in the curves. The spacing between the -10 V and -11 V curves is a bit bigger than with the remaining curves. I always thought that this is an issue with my tubes. However, when I repeated the measurement with a different curve tracera different curve tracer today, I did not observe the issue. Is this a known artifact of the eTracer?

(see attached curves from eTracer and PyPSUcurvetrace)

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admin
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3 years 6 months ago #79 by admin

Replied by admin on topic Irregular curve spacing

Sorry I missed your post. This small gap is cased by the the gain setting switched from high gain mode to low gain mode. The error (about 1%) is well within the design spec but sometimes it's noticeable on the plot. I've made some changes to the firmware to mitigate the problem. I will contact you and we might need to work on a remote debug session.

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Irregular curve spacing

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