Allo Katana DAC

[Tim Curtis]

Hi,

Here's some pics of the rotary encoder mount and of the heart of the Katana, the DAC and OPAMP boards.

GPIO 23,24 and GND wiring points on the Pi-3A+ 40-pin header
   

View of the encoder mount. The body of the encoder is entirely recessed into the mount because the mount is right against the side of the boards. The encoder is an ALPS EC12 series 24 PPR quadrature encoder. Mouser part# 688-EC12E2430804. The knob is a vintage Fender Telecaster knob :-)
           

These pics show the wire routing and where the 3-pin female crimp connector exits between the boards.
       

The wonderful Katana ES9038Q2M DAC board and Sparkos Labs based discreet OP AMP board :-)
         

-Tim