> The Peter Dahl page has a reference to an article by Pete Warren in
>an old CQ magazine on the conversion of a Drake L-4B from 3-500s to either 1
>or 2 3CX1200s. I cannot find the article, nor have I heard of anyone that
>tried it. Anyone on this reflector know of the article or of anyone that has
>done this?
>
>73 de Jim, KF7E
>
>Jim Henderson
>jhenders@tdrss.wsc.nasa.gov
>jhenders@zianet.com
Jim,
I rcvd this article few years ago from Eimac with their tubes catalog
and
some application notes I asked. Personnaly, I'm not so sure that this
conversion is such a good ideea: it's quite laborious, costly and this
quite
old tube has poor spectral purity performance than 3CX1500 or 3CX800
and needs 100W drive.It's cheaper than the new ones but , no free
lunches.
73 de Morel, 4X1AD
>
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