To: | Bill Fuqua <wlfuqu00@uky.edu> |
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Subject: | Re: [Amps] 4-250A and interesting socket information. |
From: | jsb@digistar.com |
Reply-to: | jsb@digistar.com |
Date: | Wed, 25 Aug 2004 11:32:30 -0400 (EDT) |
List-post: | <mailto:amps@contesting.com> |
On Wed, 25 Aug 2004, Bill Fuqua wrote: > The specifications for the 4-250A are the same as the 4-400A > except for the plate dissipation. The 4-400A has fins added to the > anode. I prefer the 4-250A tubes when I have an amplifier with a window. > In SSB or CW a pair glows much better at full output power. How were these tubes cared for in the days when they were in typical usage during wartime, etc.? Seems like a tube that got that hot wouldn't last long under battle conditions. 73 Jason N1SU _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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