On Wed, 24 Feb 2010 09:21:39 -0300, Felipe Ceglia - PY1NB wrote:
>Is there a way to calculate what R values and relay contact Amp rate
>should I need?
The power supply for the Ten Tec Titan 425 (1980 vintage) uses a 20 ohm 25W
resistor in series with one side of the primary. I haven't one apart for a
while, but I recall the relay contacts looking like 10-20A or so.
>Also, if the primary is feed with 110+110 volts, I should use one R on
>each primary leg winding, right?
No, only one side. The transformer is not ground-referenced, it is driven
between hot and hot.
73,
Jim K9YC
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