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B+ dropping zener - Champ got diode rectification now

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  • #16
    Originally posted by Chuck H View Post
    A 1k resistor used in a pi filter arrangement should drop about 50-55V. I didn't even do any math for this. I just plugged the values into Duncan PSUDII.
    I must have been half asleep. I didn't see the posts below #9

    I just remember 1k drops 1V at 1mA so 1k at 50mA drops 50V

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