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Old 24th January 2007, 10:33 PM   #1
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Default output transformer impedance choices

My new amp project is down to selecting OPT trannies and I am torn between 3.4K and 4.5K options for my KT88PP circuit. I know that the 4.5K will have a little lower distortion and that the 3.4K will provide more output power. What else is there to consider between my choices for a KT88 PP amp?

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Old 24th January 2007, 10:45 PM   #2
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Operating point, and how the KT88s are connected.
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Old 24th January 2007, 11:16 PM   #3
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Old 24th January 2007, 11:26 PM   #4
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Id probably go 4.5K. As you go more toward triode, and higher in voltage, larger loads are more desirable.
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