CQ-Contest
[Top] [All Lists]

Re: [RTTY] [CQ-Contest] Mono band amps

To: "VSH-RW4WZ" <vsh@udm.net>, <cq-contest@contesting.com>,"RTTY List" <rtty@contesting.com>
Subject: Re: [RTTY] [CQ-Contest] Mono band amps
From: Bill Turner <dezrat1242@ispwest.com>
Date: Sun, 22 Jan 2006 12:35:59 -0800
List-post: <mailto:rtty@contesting.com>
ORIGINAL MESSAGE:

At 10:44 AM 1/22/2006, VSH-RW4WZ wrote:

>Good idea, but it seems for me it will be cheaper and easy to build  PA
>using
>one tube and 5 PI networks which is switch by 10 relays......
>We build  30 years ago such a kind  PA at UK4WAR ;)
>
>73!
>
>Larry
>
>RW4WZ


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

That would be good too if you can keep the lead lengths down. Also, a 
relay to switch the plate end of the pi net would have to be pretty 
substantial ($$$). I like the idea though.

Perhaps the tube could be in the center and the networks laid out 
like spokes of a wheel? That would take a lot of chassis space, but 
so would separate amps.

Or maybe a single tapped coil and separate tune/load caps being 
switched in and out?

How did you do it at VK4WAR?

73, Bill W6WRT
_______________________________________________
RTTY mailing list
RTTY@contesting.com
http://lists.contesting.com/mailman/listinfo/rtty

<Prev in Thread] Current Thread [Next in Thread>