[Amps] Step Start

[gdaught6@stanford.edu]

Hi all,

While we're on the subject of soft/step start circuits, I'd like to 
ask a question that I've had for years, but never asked until now:

Why do most step-start circuits in the primary of the HV transformer 
have tow resistors and relay contacts shorting the resistors in EACH 
(i.e. BOTH) leads of the primary?  

Doesn't a single resistor and relay do the same job?  It's a single 
current path.  

73,

  


George T. Daughters, K6GT