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NU-2160 Push-Pull

Amplifier

Schematic from Melvin C. Sprinkle (September 1951). The tube is known also as a 6BL5GT/2160.
It's a space charge grid amplifier, the two grids of the tetrode are inverted: the screen grid receives the signal and the control grid the screen supply. It's not the best amp but it is interesting from a technical point of vue.

Power Supply

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