I'd like to add a PI as the last stage in a preamp section, which will feed the power amp PI thru a double track pot as a MV. The goal is to have PI dist before the MV, and even be able to drive both PIs into full dist when balls to the walls mayhemming.
So I need to make up my mind about which type of PI to add in the preamp...LTP type or paraphase type? The LTP gives a little more gain, but the paraphase is easier to get symmetrical output swing. I also save a triode in the latter, which I can use for some other wierd idea.
Any comments? I'll probably end up trying both, as a matter of fact I've been planning a preamp with several types of circuits, but time....time...I need more time.
So I need to make up my mind about which type of PI to add in the preamp...LTP type or paraphase type? The LTP gives a little more gain, but the paraphase is easier to get symmetrical output swing. I also save a triode in the latter, which I can use for some other wierd idea.
Any comments? I'll probably end up trying both, as a matter of fact I've been planning a preamp with several types of circuits, but time....time...I need more time.
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