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[AMPS] filament rheostats+

To: <amps@contesting.com>
Subject: [AMPS] filament rheostats+
From: N6BUU@aol.com (N6BUU@aol.com)
Date: Tue, 22 Feb 2000 13:06:25 EST
In a message dated 02/21/2000 02:58:37 AM Pacific Standard Time, 
Peter_Chadwick@mitel.com writes:

<< 
 Better, but even more expensive, is a regulated filament supply that is
 current limited so the inrush current can't exceed twice the normal current,
 and doesn't vary with line volts. You can afford to build that sort of thing
 into a home brew amp.......but commercially it's a no-no.
 
 73
 
 Peter G3RZP >>
well it seems to me that for the cost equiv. of one tube (3cx400 or 3cx 800 
etc.) they could do this! a set a tubes (valves) should, it seems to me last 
a HAM  a life time. 20 thousand hours is a lot of time.
                                                        hank

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