Re: Tek 576 Curve Tracer HV Replacement Transformer


 

Michael, Chuck,

Why is a resistor in series with the multiplying ladder necessary? Isn't the internal helical coating of the CRT a load and a drainage means of the ladder capacitors?
In the 547 there is a 1 Mohm 1/4 watt resistor after the ladder, followed by a 500pF capacitor to ground.
In the 7704A there is no visible resistor, and the do-it-yourself circuit does not show one inside the X14 module.

Ernesto

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