Clarification of terms

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titser_marco
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Clarification of terms

Post by titser_marco »

Hi! Been looking around the forums and the phrases "high plate" and "low late" have come up a lot of times. Now, while there are others who are very specific in their posts ("low plate load RESISTOR vs high plate load RESISTOR" there are posts that I am always confused with:

1. Low plate or high plate - Do these mean plate voltage or the value of plate resistors?

2. "220k/100k plate load resistors increase the gain" - In these posts I am always confused. I know that using 220k over 110k tends to lower the headroom of the gain stage and therefore clip/od/distort earlier, but I've seen some people say that 220k increases the gain which to me is confusing, since 100k should have more voltage gain because of the lower value of the resistor.
Stevem
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Re: Clarification of terms

Post by Stevem »

They are talking about the resistor value and if you are looking for example of the typical Fender set up of 1500 cathode and 100k plate you can go up or down in these two by 25% and still not clip for example the top of the wave form more than the bottom.
To me the change in voltage gain is secondary most times to how the amp sounds during clipping.
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pdf64
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Re: Clarification of terms

Post by pdf64 »

titser_marco wrote:100k should have more voltage gain because of the lower value of the resistor.
Incorrect.
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Structo
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Re: Clarification of terms

Post by Structo »

R * I = P
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