Gentlemen, For those interested in the design of HF power amplifiers this web page might be of interest: http://66.249.93.104/translate_c?hl=en&ie=UTF-8&oe=UTF-8&langpair=ja%7Cen&u=http://www.iizuka-
Nice looking amp. I wonder how the 4 unshielded meters like all that RF. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/list
Not directly-grounding the screen collet of a 4cx10,000D is an invitation to a squirrel invasion. R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mai
Rich, For the single bander they might get away with it. But I've seen multiband designs of the same origin which catched fire due to oscillation of the amp. Cheers, Dick PA3DUV _____________________
Indeed, Dick. For an 8171, the problem is typically oscillation at c. 70MHz, so multi-band or single-band makes no difference. As I see it, grounding the screen collet with 8, Cu straps is something
Indeed! This is very very true. Needs to be VERY low inductive grounding. 73 Jim SM2EKM PS: What one also can do is, replace the cheramic spacers that sits betwen the grid rings with metal spacers, w
Good solution -- if one has a lathe. Indeed, Jan. At this point, going another S-unit will definitely be a Bill Gatesian expense, will almost certainly a 20kV supply - and that means X-ray shielding.