This is a prototype I have built: a simple booster/pre-amplifier with 2 independent circuits (EP-3 vs my mod/variation). 100% hand built using only old components, still made in the old factories of the western world. I also used old leather in the enclosure to give it a vintage, deluxe look. The light plate, on the other hand, makes it look futuristic.
https://www.youtube.com/watch?v=FiNfRbrMO7w
Cheers!
