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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Thanks again for yourkind consideration posted by maynardg on March 4, 2007 at 03:52:04:
The sole purpose of the AC SAFETY Ground connection to chassis is to prevent YOU from becoming a portion of the circut in the event of a fault that places dangerous voltage on the chassis. An Earth Ground connection is not required for normal circut operation EXCEPT as a SAFETY measure. Your household electrical service entrance does pose full potential to that AC Ground. As such, referancing a dis-connected transformer secondary winding to the separate AC SAFETY Ground can also result in erroneous & fluctuating AC voltage results. If your secondary windings are correctly identified, the no continuity between CT & lead #1 (& non-continuity between #1 & #2 follows since CT is in-between) is sufficient to show fault. Hope that helps.
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