[TenTec] OT: Scopes

Ken Brown ken.d.brown at hawaiiantel.net
Mon Feb 20 16:09:32 PST 2012


Oops! Big typo here


> For example a 3 kV plate supply for an amplifier might have a 600 k Ohm 
> bleeder resistance across the output. If that resistor was made from 
> some some combination of resistors adding up to 594 k Ohm, with the 
> remaining 6 k ohm in series on the ground end, you would have a 100X 
> voltage division. The test point at the hot end of the  6 k Ohm resistor 
> would have 30 V on it when the HV supply is 300 V.
Should say 30 V on the test point when HV supply is 3000 V.

> A potential hazard (pun intended) is the 6 k Ohm resistor opening up, 
> resulting in the full 3 kV appearing at the test point.
>   
And also, even though I intended the pun, if this happened it would not 
be funny.

DE N6KB


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