I employed the services of Prasi to draw up a layout of the ACA Mini, taking inspiration from Mark Johnson and of course the Nelson Pass design.
Boards were made 1.6mm 1oz hasl from JLCPCB. The BOM is as per the other layouts.
Small silkscreen error on the output transistors. Reads 530 and 9530, should be xx20.
I don't know if the multi turn trimmers I used were handed different, but following the set up instructions, fully CCW gave me full bias and VO so I needed to do the opposite and go full CW.
I can offer 12 spare boards at £8.50 UK or £10 ROW delivered. Just to recoup some of the costs.


Boards were made 1.6mm 1oz hasl from JLCPCB. The BOM is as per the other layouts.
Small silkscreen error on the output transistors. Reads 530 and 9530, should be xx20.
I don't know if the multi turn trimmers I used were handed different, but following the set up instructions, fully CCW gave me full bias and VO so I needed to do the opposite and go full CW.
I can offer 12 spare boards at £8.50 UK or £10 ROW delivered. Just to recoup some of the costs.

