[AMPS] SB-1000 mods?

[Tom Rauch]

> glitch resistor? I have some 25 ohm/25 watt Dale RER type metal body
> resistors, but I am concerned that they might be prone to flash over
> due to the relatively small gap between the leads and the metal case.
> Presumeably a ceramic body wire wound resistor is the way to go.
> Should I be concerned about inductance (L*di/dt kick) - some
> wirewounds seem to be classified as "non-inductive" whereas some
> aren't?

The resistor must be surge rated for the voltage across the resistor 
and the peak energy.

RCD makes xxx-P series pulse rated resistors, or you can use a 
"glow-bar" type. The RCD pulse rated resistor barely costs more 
than a conventional wire wound resistor.

It makes no difference at all if it is inductive, because the 
inductance will be negligible. Many non-inductive wire wound 
resistors have a lower than normal voltage rating (from lead to 
lead), because of the winding method.

The metal case resistor won't work well.



  

73, Tom W8JI
W8JI@contesting.com 

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