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Author Topic: Supressor modulation question  (Read 3366 times)
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W7TFO
WTF-OVER in 7 land Dennis
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« 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 Huh

73DG
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KA2DZT
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« Reply #1 on: December 01, 2013, 06:31:20 PM »
DG

Is this a trick question??

Fred
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AB2EZ
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« Reply #2 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
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Stewart ("Stu") Personick. Pictured: (from The New Yorker) "Season's Greetings" looks OK to me. Let's run it by the legal department
W7TFO
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« Reply #3 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
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WQ9E
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« Reply #4 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.
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Rodger WQ9E
W7TFO
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« Reply #5 on: December 01, 2013, 08:37:21 PM »
OK boys, I'll hook it up as a single source of supressor voltage.

Many thanks for the quick replies! Cheesy

73DG
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