Boob Tube V1.5 output impedance

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Boob Tube V1.5 output impedance

Iknownothing
This post was updated on .
Hi, I am new to the forum. Thank you so much for this amazing resource. I want to build a pedalboard amp using the LM3886 as the power amp and the boob tube as the preamp. The input impedance from the power amp schematic is 22k. I was just wondering what the output impedance is on a boob tube V1.5? If this wouldn’t work, are there any other suggestions someone might have?   Thank you so much!