This is pretty much what you asked for: http://www.freewebs.com/valvewizard/cathodyne.html
As Sy said, that's often referred to as a "split-load" phase inverter. And I second his recommendation for the 12AT7, especially if you are using a P-P output stage. A single 12AT7 will provide plenty of gain in the right configuration.
You might look at the "El-Cheapo" front end (on the Decware forum). Of course, Sy's suggestion is good too (I'm sure!), I'm just not nearly as familiar with it.
"El-Cheapo" does not use a cathodyne/split-load PI, but you still might find it very appealing.
You might look at the "El-Cheapo" front end (on the Decware forum). Of course, Sy's suggestion is good too (I'm sure!), I'm just not nearly as familiar with it.
"El-Cheapo" does not use a cathodyne/split-load PI, but you still might find it very appealing.
Actually, it has more gain...
Although a concertina/cathodyne/split load phase splitter doesn't have gain to an individual output, it has a differential gain of two, so in combination with a typical common cathode input stage it has a gain double that of a phase splitter based on a differential pair.
Although a concertina/cathodyne/split load phase splitter doesn't have gain to an individual output, it has a differential gain of two, so in combination with a typical common cathode input stage it has a gain double that of a phase splitter based on a differential pair.
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