[Amps] Checking Filament Voltage

[Bill Turner]

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On Tue, 21 Feb 2017 12:29:06 -0500, Ron wrote:

>   I believe in this situation a huge rheostat would be better than a
>variable transformer of any kind.  The rheostat would greatly reduce
>the "in-rush surge current."  This will be much kinder to the filament
>of the tube/s.

REPLY:

IMO, if inrush current is a concern, one should install a step-start
circuit rather than depend on a rheostat which might or might not be
sufficient. 

73, Bill W6WRT