[Amps] 2kw sweep tube amp....again

Dick Hanson k5and at austin.rr.com
Fri Jul 7 20:19:28 EDT 2006


The tubes used were PL509 or PL519; the article interchanges both numbers,
so go take your choice. The switching supply delivers 1200V and is called "
an off-line, full-bridge, phase-controlled, quasi- resonant converter
operating at 100KHz.
The 3rd order distortion products are shown on the scope at -35db @ 2KW PEP.
The whole thing weighs in at 8kg.
Constructionwise, it is a very neat little package.

Remember, I am only the messenger here, with no dog in the fracas.

73
Dick



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