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Allen Wright style cascaded long tail pair?

Posted by panos29@yahoo.com (A) on January 30, 2006 at 12:00:40

Hi all,

after much strugling with 2 differential pairs driving each other in order to drive a pair of 6080s, I was unable to arrive to a driver capable of producing, lets say 100VRMS (at low distortion and extended bandwidth) at each output grid. (I used an LTP around 12au7 driving a differential around ECC99 both ccs-ed).
Thus I decided to give a try to a cascaded long tail pair around 6H6PI that happens to have at hand. If this is doable at 480V lets say at 30-40mA what will be the predicted output, will this be able to swing around 100RMS at each grid? I would also like to use this driver as a universal driver for PP operation into other projects too(6336A, 2A3, 6C33). Any help would be greately appreciated.

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Kimber Kable

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