How to calculate origonal voltage when using DBT?

Discussion in 'General Electronics Chat' started by redrooster01, Aug 26, 2015.

  1. redrooster01

    Thread Starter Member

    Jul 15, 2014
    84
    1
    I have an arcing problem in the high voltage power circuit in my Protek 6502 oscilloscope.It doesnt arc when I use my dim bulb tester though so I made up a 1.100 high voltage probe to connect to my DMM. The voltage is supposed to be neg dc -1900v, with the DBT in series I get around -1470v.Ive searched around but I cant find how much voltage drop the DBT causes and what the right voltage would be? Any help would be appreciated.
     
  2. #12

    Expert

    Nov 30, 2010
    16,278
    6,791
    First, do you have the schematic? Owner's Manual, Operators Manual, anything for documentation?
    Second, What is a "dim bulb tester"?
    Third, What is a 1.100 high voltage probe?
     
  3. shortbus

    AAC Fanatic!

    Sep 30, 2009
    4,009
    1,530
    "dim bulb tester?" Neon test light?
    "1.100 high voltage probe?" 1:100 ratio lead?
     
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