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[Amps] Step Start on a 3KA Amp

To: "AMPS" <amps@contesting.com>
Subject: [Amps] Step Start on a 3KA Amp
From: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 17 Sep 2006 13:06:27 -0400
List-post: <mailto:amps@contesting.com>
Can anyone tell me what good is it to have one of those cone heaters in 
series with the primary of the plate transformer?  When the cone heater is 
in the circuit, the secondary voltage is 2800VDC and when it is shorted out, 
it is 3000VDC.  Hardly seems worth the effort.  The cold resistance of the 
cone is ±30 ohms.

Bob  W6TR 

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