At 03:48 PM 3/17/03 -0600, Phil Clements wrote:
>One of the main issues is inrush current, Steve.
>This is the reason most light bulbs fail upon turn-on.
>If the filament transformer is designed properly for the tube(s)being powered,
>the inrush current is self-limiting to less than the tube manufacturer's
>specs.,
>and you have built-in protection and long tube life.
I believe many old 3-500Zs are in SB-220s, which are designed to this
standard. No?
73, Pete N4ZR
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