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Title: Supressor modulation question Post by: W7TFO on December 01, 2013, 06:29:02 PM Suppose you have a pair of pentodes in push-pull as supressor modulated finals.
Does one feed the supressors out-of-phase audio or in-phase ??? 73DG Title: Re: Supressor modulation question Post by: KA2DZT on December 01, 2013, 06:31:20 PM DG
Is this a trick question?? Fred Title: Re: Supressor modulation question Post by: AB2EZ on December 01, 2013, 07:08:16 PM I haven't ever thought about suppressor modulation; but the modulation of a pair of tubes in push-pull should be applied in the same phase to both tubes... regardless of the type of modulation.
Stu Title: Re: Supressor modulation question Post by: W7TFO on December 01, 2013, 07:09:13 PM Nope..I just can't find a definitive answer.
For single or parallel, it is simple. But PP? BTW, I do believe that is the shortest answer Stu ever posted... 73DG Title: Re: Supressor modulation question Post by: WQ9E on December 01, 2013, 08:24:42 PM Stu provided the simple answer. It is no different than plate modulating a push/pull final in that the modulation is applied in the same phase to both tubes.
Title: Re: Supressor modulation question Post by: W7TFO on December 01, 2013, 08:37:21 PM OK boys, I'll hook it up as a single source of supressor voltage. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Many thanks for the quick replies! :D 73DG |