[Drake] L-4B

[Jim W7RY]

Did I say anything about filament voltage in my post? No, I did not.

I was talking about PLATE VOLTAGE.

73
Jim W7RY


At 06:59 PM 7/23/2004, W4AWM at aol.com wrote:
>IHitting ANT tube with full filament voltage will eventually weaken it.  Soft
>start tapes some of the pressure off.  Only takes a couple of seconds and if
>it makes a $200.00 tube last longer, my book says it is well worth it
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