NEScaf in altoids tin

I used a mini stereo plug and cable on the left to bring audio into the filter and put one of the mini jacks on the right end for audio out. Everything is mounted so that what is usually the bottom of the tin becomes the top of the filter. In the upper left hand corner are the power connector and switch. The left knob is center frequency, clockwise is higher, and the right knob is the width, with clockwise being narrower.