[sdiy] Uses for Chinese Tube Preamps?

[Spiros Makris]

Hello List,
I recently saw a short demo video of some pretty cheap tube preamps from
aliexpress. I have no use for a preamp right now, but given the price (16
euros delivered!) I guess it would be fun to overdrive it or do some mods
to it. I am expecting a spring rever driver PCB, and I was entertaining the
idea of combining it with a tube drive, to apply on synthesizers.

Has anyone tried it? Maybe even have a schematic to share?
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