grid impedence of paralleled tubes in push pull - diyAudio
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Old 13th January 2007, 11:35 PM   #1
nhuwar is offline nhuwar  United States
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Default grid impedence of paralleled tubes in push pull

When connecting the tubes in parallel is the impedence z\number of tubes or does it not change the z. Is there a formula for finding this?

Also push pull is the input signal to the 2 sides 180 degrees from each other but twice the signal input?
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Old 14th January 2007, 12:24 AM   #2
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Default Re: grid impedence of paralleled tubes in push pull

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Originally posted by nhuwar
When connecting the tubes in parallel is the impedence z\number of tubes or does it not change the z. Is there a formula for finding this?
Paralleling reduces impedance. It also increases capacitance.

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Also push pull is the input signal to the 2 sides 180 degrees from each other but twice the signal input?
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Old 14th January 2007, 12:37 AM   #3
nhuwar is offline nhuwar  United States
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I guess what i'm really getting at is how do you figuare the z because I was thinking it's not just finding the capacitance reactance of the grid at the lowst or highest frequency.
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