-- card: 39389 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 4601
-- name: #124
----- HyperTalk script -----
on openCard
  global group,rightone
  put 12 into group
  put "D" into rightone
  pass openCard
end openCard



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Question #12

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3BD-4.2 Why is neutralization in some vacuum tube amplifiers necessary?

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To reduce the limits of loaded Q in practical tuned circuits

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To reduce grid to cathode leakage

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To cancel acid build-up caused by thorium oxide gas

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To cancel oscillation caused by the effects of interelectrode capacitance