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
--
FAQ on WWW: http://www.contesting.com/ampsfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|