BJFE Folk Booster

[Freppo]

From schematic drawn by Björn himself for the DIY section of his forum.
Not verfied yet, but it should be fine.

cheers / Fredrik

[j-pee]

the schematic is relatively hard to find as the image in the OP was deleted,
so, here it is:  
 https://bjornjuhl.com/forum/viewtopic.php-f=10&t=4328&start=50.html