Hi Harry,
I have an SB-230 modified by Bob Friess to use an 8560AS. These tubes
go for around $50 each new, and it will put out 500 watts with 10 watts
drive. Bob lost a lot of the design data when his hard drive crashed.
I plan to reverse engineer it and put the details on the web. He did a
really nice job.
73,
Rob, KL7NA
On Fri, 2007-10-12 at 13:54 -0400, Harry Brown wrote:
> I got a SB-230 Amp at a local hamfest with a bad 8873.
>
> I'd like to replace the 8873 with something affordable. Can someone point me
> to a conversion article on the 230 that uses an air cooled tube?
>
> 73, Harry, W3IIT
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