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There are many power pentodes that are similar to the KT66 BUT

you would have to do modifications to use them. They are not pin compatible. If you're willing to do those modifications then this opens up a number of tubes as I noted below to another of your questions; 6BG6G, 807. These were both used by Westrex and Western Electric and even McIntosh in some of their industrial amps used for mo-pic theatres.
I think you now need to read as much as you can get your hands on about making modifications. Then try hard to learn how to solder well. Find a ham radio operator that might teach you or maybe some vo-tech school in your community could give you a crash course. Here is a link about Cornell Dubilier Oil capacitors avaliable from Allied radio. Ideally this is type of cap one should use as the first cap after a 5R4. They are not cheap!
http://www.alliedelec.com/Search/ProductDetail.asp?SKU=862-0377&SEARCH=oil+capacitors&ID=&DESC=SFC66S10K291B
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  • There are many power pentodes that are similar to the KT66 BUT - grhughes 08:18:34 11/24/05 (0)


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