[Amps] Step Start PhaseAngle cotrollers

[R.Measures]

**  Other disadvantages are that 50 or 60 Hz is too fast of a ramp-up for 
capacitor filter HV supplies and for thoriated-tungaten 
filament/cathodes.  However for heater-type cathodes using a 
resonant-choke HV supply, zero-crossing switches should be OK after 
suitable RFI filters have been installed.  To my way of thinking, a 
conventional one resistor and one SPST DC-coil relay stepstart is a less 
problematic, albeit less-elegant, solution.  

>LX2KL's web page has a some good information on the different commercial
>zero crossing  step start systems. One disadvantage is that they need  RF
>suppression filters.
>
>
>http://www.kristronic.com/index.html
>
>Craig
>VK3HE
>
>_______________________________________________
>Amps mailing list
>Amps at contesting.com
>http://lists.contesting.com/mailman/listinfo/amps
>